Engine Mini Pack Engine Model: PW 4056-3

ESN: 724307

Time Since New: 84,463

Cycles Since New: 13,974

Time Since Last Shop Visit: 9,015 Cycles Since Last Shop Visit: 1,793

Last Shop Visit: Eagle Services May 2011

LLP Limiter: 1,793

Location: UK

Available Immediately

A J Walter Leasing Limited, Exchange House, 54-58 Athol Street, Douglas, IM1 1JD, Isle of Man, T: +44 1685 352757 E: [email protected] W: www.ajw-aviation.com

LIFE LIMITED PARTS REPORT

ENGINE SERIAL NUMBER MODEL TSN CSN TSLSV CSLSV STATUS DATE 724307 PW4056-3 84.463 13.974 9.015 1.793 22-Dec-16

TOTAL PER CATEGORY LIFE LIMIT REMAINING LIFE (CYCLES) (CYCLES) (CYCLES) DESCRIPTION P/N S/N TSN CSN 4152 4060 / 4156 / 4052 / 4460 / 4152 4060 / 4156 / 4052 / 4460 / 4152 4060 / 4156 / 4052 / 4460 / 4062 4158 4056 4462 4062 4158 4056 4462 4062 4158 4056 4462 HUB FRONT COMPRESSOR 50B321 CBDUAN3065 11.268 11.268 20.000 15.000 15.000 20.000 15.000 8.732 6.549 6.549 8.732 6.549 DISK DRUM ROTOR 1.6-4 50B422 CBDUAN3176 11.268 11.268 20.000 15.000 15.000 20.000 15.000 8.732 6.549 6.549 8.732 6.549 TURBINE SHAFT (LPC-LPT COUPLING) 50A281 P49432 14.242 14.242 30.000 30.000 30.000 30.000 30.000 15.758 15.758 15.758 15.758 15.758 HUB HPC FRONT 51H572 CENCA69293 8.974 8.974 20.000 15.000 15.000 20.000 15.000 11.026 8.269 8.269 11.026 8.269 HPC DISK STAGE 5 56H605 CENCA58733 8.974 8.974 20.000 15.000 15.000 20.000 15.000 11.026 8.269 8.269 11.026 8.269 HPC DISK DRUM ROTOR 6- 12 55H106-01 CENCAW8348 11.345 11.345 20.000 15.000 15.000 20.000 15.000 8.655 6.491 6.491 8.655 6.491 HPC DISK DRUM ROTOR 13- 15 56H013-01 CENCBA0215 8.974 8.974 20.000 15.000 15.000 20.000 15.000 11.026 8.269 8.269 11.026 8.269 HPC DRIVE SHAFT 54H767 CENCBG8429 6.875 5.082 1.793 20.000 15.000 15.000 20.000 15.000 11.431 8.573 8.573 11.431 8.573 HPC AIRSEAL, DIFFUSER 54H792 CENCA81443 8.974 8.974 20.000 15.000 15.000 20.000 15.000 11.026 8.269 8.269 11.026 8.269 HUB TURBINE FRONT (STAGE 1) 52L301 CKLBFJ9008 8.251 8.251 18.000 13.700 13.700 20.000 13.700 10.574 8.048 8.048 11.749 8.048 HUB TURBINE INTER. REAR (STAGE 2) 52L802 CKLBFD9723 8.251 8.251 20.000 15.000 15.000 20.000 15.000 11.749 8.811 8.811 11.749 8.811 AIRSEAL HPT STAGE 1 (OUTER) 50L879 CKLBE74130 8.251 8.251 20.000 15.000 15.000 20.000 15.000 11.749 8.811 8.811 11.749 8.811 RING HPT STAGE 1 50L664 CKLBFM9393 7.671 7.671 20.000 15.000 15.000 20.000 15.000 12.329 9.246 9.246 12.329 9.246 PLATE HPT STAGE 2 BLADE RETAINING 50L242 CKLBES0635 8.251 8.251 20.000 15.000 15.000 20.000 15.000 11.749 8.811 8.811 11.749 8.811 AIRSEAL HPT STAGE 2 53L030 CKLBFA8454 7.062 7.062 20.000 15.000 15.000 20.000 15.000 12.938 9.703 9.703 12.938 9.703 DISK. LPT STAGE 3 50N003 R25276 14.546 14.546 20.000 15.000 15.000 20.000 15.000 5.454 4.090 4.090 5.454 4.090 DISK. LPT STAGE 4 50N024 P34359 14.546 14.546 20.000 15.000 15.000 20.000 15.000 5.454 4.090 4.090 5.454 4.090 HUB REAR TURBINE STAGE 5 50N405 P96593 14.546 14.546 20.000 15.000 15.000 20.000 15.000 5.454 4.090 4.090 5.454 4.090 DISK. LPT STAGE 6 50N486-01 CLDLA97826 12.205 12.205 20.000 15.000 15.000 20.000 15.000 7.795 5.846 5.846 7.795 5.846 AIRSEAL LPT STAGE 3 (OUTER} 50N008 RG6103 14.546 14.546 20.000 15.000 15.000 20.000 15.000 5.454 4.090 4.090 5.454 4.090 AIRSEAL LPT STAGE 3 (INNER} 50N007 RY8001 14.546 14.546 20.000 15.000 15.000 20.000 15.000 5.454 4.090 4.090 5.454 4.090 AIRSEAL LPT STAGE 4 50N009 RG6348 18.207 18.207 20.000 15.000 15.000 20.000 15.000 1.793 1.344 1.344 1.793 1.344 AIRSEAL LPT STAGE 5 50N347 S62455 12.595 12.595 20.000 15.000 15.000 20.000 15.000 7.405 5.553 5.553 7.405 5.553 FRONT COMP. ORNE TURB. (LPT) SHAFT 50A077 P32357 14.546 14.546 30.000 30.000 30.000 30.000 30.000 15.454 15.454 15.454 15.454 15.454

PREPARED BY DATE SIGNATURE Cesar Boggian 04-Jan-17

Borescope Inspection Report

Ref: RB0881_P724307CN_21OCT2016_MART_R1

R1: Hours and cycles added; details for T2 inspection added

Engine Type : PW4056

Engine Serial No.: P724307CN

Customer:

APMS Aviation Ltd Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom www.apmsaviation.com EASA 145 UK.145.01272 FAR 145 Foreign Repair Station O6RY005B

(PW4000‐94in : Iss 2 – OCT/14) Ref: RB0881_P724307CN_21OCT2016_MART_R1

Contents

Section 1  General Information

Section 2  Nose Cone  Fan Blades  Fan Track  OGV’s

Section 3  LP Compressor Blades – C1.6 & C4

Section 4  HP Compressor Blades – C5 to C15

Section 5  Combustor  HP Nozzle Guide Vanes  HP Turbine Blades – T1 & &2

Section 6  LP Turbine Nozzle Guide Vanes – T3  LP Turbine Blades – T3 & T6

Section 7  General Comments & Recommendations

The complete video borescope findings are recorded on the DVD which is included with this report.

APMS Aviation Ltd 2 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

Section 1

General Information

Engine Type: PW4000

Aircraft: B747-400 Reg/MSN/Position: PH-MPP / unknown / #2

Engine S/N P724307CN

Mark / Rating PW4056-3

TSN 84463

TSLSV 9015

CSN 13974

CSLSV 1793

Inspection Details:

Location : TERUEL (TARMAC) Spain Date : 21-OCT-2016

Reason For Inspection : Pre Sale Borescope

Technical Data Used:

Boeing B747-400 AMM Rev 87 Dated Jul 15, 2016

Borescope Inspection Procedures Contained in ATA Section(s):

72-00-00

APMS Aviation Ltd 3 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

Section 2

Fan Section  Nose cone  Fan blades  Fan track  OGV’s

*These items are subject only to a general visual inspection only.

Inspection Findings:

Nose Cone: Minor erosion and minor impacts noted. All satisfactory to AMM limits without reduced inspection interval.

Continue-In-Service Limits 1) The FOD visual limits of the external cone surface are given as follows: a) The damage that follows is permitted if it does not cause crazing with the primary path to the inner surface of the cone: <1> Small paint particles <2> Dents <3> Scratches <4> Chipping

Fan Blades (38ea): Minor erosion noted. All satisfactory to AMM limits without reduced inspection interval.

Fan Track: No defects noted.

APMS Aviation Ltd 4 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

OGV’s: Minor erosion noted. All satisfactory to AMM limits without reduced inspection interval.

General Comments – Fan: No significant defects noted on module.

APMS Aviation Ltd 5 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

Section 3

LP Compressor Blades  C1.6 & C4 Blades

Inspection Findings:

C1.6 Blades (94ea): 1 blade has a nick on the L/E (lower half) which requires a blend repair. All other blades are acceptable to AMM limits.

1 blade has a nick/dent in the lower half on the L/E (Area E)

AMM Limit SUBTASK 72-31-05- 216-011-N00: Rounded damage at the leading and trailing edges, which you can see on the opposite surface of the blade, are permitted as follows: 1) The damage is on the outer half of the blade. 2) The dent is not more than 0.010 inch (0.254 mm) in depth.

Depth of 0,54 mm is within blend limit (0,813 mm):

APMS Aviation Ltd 6 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

C4 Blades (66ea): Minor erosion noted. All satisfactory to AMM limits without reduced inspection interval. Pictures added to show the general condition of the blades.

General Observations – Booster Compressor: 1 LPC 1.6 blade requires a blend repair.

APMS Aviation Ltd 7 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

Section 4

HP Compressor Blades.  C5 – C15 Blades.

Inspection Findings:

C5 Blades (40ea): Minor erosion and minor impacts noted. All satisfactory to AMM limits without reduced inspection interval.

1 blade has a noticeable impact on the L/E (Area C). Nick depth: 0,41 mm (Area C)

AMM Limit - Table 609/72-00-00-993-843-N00: Multiple damage on the same blade edge that is not more than 0.031 inch (0.794 mm) in depth is permitted. There is no separation requirement for damage on the same edge.

Measurement

APMS Aviation Ltd 8 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

C6 Blades (51ea): Minor erosion and minor impacts noted. All satisfactory to AMM limits without reduced inspection interval.

1 blade has a noticeable impact on the L/E (Area E). Nick depth: 0,2 mm

AMM Limit - Table 609/72-00-00-993-843-N00: Multiple damage on the same blade edge that is not more than 0.015 inch (0.397 mm) deep is permitted. There is no separation requirement for damage on the same edge.

Measurement

C7 Blades (56ea): Minor erosion and minor impacts noted. All satisfactory to AMM limits without reduced inspection interval. Pictures added to show the general condition of the blades.

APMS Aviation Ltd 9 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

C8 Blades (53ea): Minor erosion noted. All satisfactory to AMM limits without reduced inspection interval. Pictures added to show the general condition of the blades.

C9 Blades (66ea): Minor erosion and minor impacts noted. All satisfactory to AMM limits without reduced inspection interval. Pictures added to show the general condition of the blades.

C10 Blades (62ea): Minor erosion and minor impacts noted. All satisfactory to AMM limits without reduced inspection interval. Pictures added to show the general condition of the blades.

APMS Aviation Ltd 10 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

C11 Blades (68ea): Minor erosion and minor impacts noted. All satisfactory to AMM limits without reduced inspection interval.

4 blades have noticeable impacts on the L/E.

Deepest impact measured: Nick depth 0,13 mm – well within AMM limits

AMM Limit - Table 609/72-00-00-993-843-N00: Worst case area E: Stage 9 through 15 Multiple damage on the same blade edge that is not more than 0.031 inch (0.794 mm) in depth is permitted.

APMS Aviation Ltd 11 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

C12 Blades (72ea): No defects noted. Pictures added to show the general condition of the blades.

C13 Blades (78ea): Minor erosion and minor impacts noted. All satisfactory to AMM limits without reduced inspection interval. Pictures added to show the general condition of the blades.

C14 Blades (76ea): Minor erosion and minor impacts noted. All satisfactory to AMM limits without reduced inspection interval. Pictures added to show the general condition of the blades.

APMS Aviation Ltd 12 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

C15 Blades (70ea): Minor erosion and minor impacts noted. All satisfactory to AMM limits without reduced inspection interval. Pictures added to show the general condition of the blades.

General Observations – HP Compressor: No significant defects noted on module.

Note: All compressor stages show white crystals (salt or deposits) on the blades.

APMS Aviation Ltd 13 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

Section 5

Combustion & HP Turbine  Combustor  HP Nozzle Guide Vanes  HP Turbine Blades – T1 & T2

Inspection Findings:

Combustor: Bulkhead: Minor coating loss on fuel nozzle heat shields noted.

AMM Limit – Any Amount.

AMM Table 612/72-00-00-993-814-N00: Heatshield Surface Layer that is missing All quantities. NOTE: When the surface layer is missing, the rate of the Heatshield deterioration will increase.

All findings are acceptable to AMM limits and do not require a reduced inspection interval.

Inner Liner (Louver): No defects noted. Pictures added for reference only.

APMS Aviation Ltd 14 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

Outer Liner (Louver): Minor cracks noted. All findings are acceptable to AMM limits and do not require a reduced inspection interval.

3 locations with an axial crack which completely traverses 1 louver.

AMM limit for regular inspection interval (Table 611/72-00-00-993-813-N00): Axial Cracks that are only on one Louver All cracks that are not more than 0.75 inch (19.050 mm) in length. Cracks can completely traverse one louver, but must be separated circumferentially by 6.0 inches (152.400 mm) minimum.

HPT 1 Nozzle Guide Vanes: Minor coating erosion/ loss. All satisfactory to AMM limits without reduced inspection interval. Pictures added to show the general condition of the Vanes.

APMS Aviation Ltd 15 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

HP Turbine Blades T1 (60ea): Minor tip rub and minor coating loss noted. All satisfactory to AMM limits without reduced inspection interval. Pictures added to show the general condition of the blades.

AMM Limit (Table 615/72-00-00-993-819-N00):

Thermal Barrier Coat not on blade A, B and C All quantities of thermal barrier coat are permitted to be not there, chipped, crazed or cracked.

All findings are acceptable to AMM limits and do not require a reduced inspection interval.

APMS Aviation Ltd 16 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

During the HPT1 Blade inspection cracks were noted on HPT2 Guide Vanes.

The allowable limit depends on the installed P/N and the status of SB PW4ENG 72-780.

T2 Vane inspection is not part of the regular AMM inspection.

Martinair provided the following Time since last insp. per SB 72780: 367 H / 70 cycles. Remaining until next insp.: 33 H / 30 C information: Inspection performed 70 Cycles ago

HP Turbine Blades T2 (82ea): No defects noted. Pictures added to show the general condition of the blades.

General Observations – Combustion / HPT: No significant defects noted.

APMS Aviation Ltd 17 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

Section 6

Low Pressure Turbine  LP Turbine Nozzle Guide Vanes – T3  LP Turbine Blades T3 & T6

Inspection Findings:

LP Turbine Nozzle Guide Vanes – T3: No defects noted. Pictures added to show the general condition of the vanes.

LP Turbine Blades – T3 (128ea): No defects noted. Pictures added to show the general condition of the blades.

APMS Aviation Ltd 18 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

LP Turbine Blades – T6 (128ea): No defects noted. Pictures added to show the general condition of the blades.

General Comments – LP Turbine: No defects noted on module.

APMS Aviation Ltd 19 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

Ref: RB0881_P724307CN_21OCT2016_MART_R1

Section 7

General Comments:

The condition of LPC 1.6 (1 blade) requires a blend repair. All other stages didn’t show any significant defects.

Observation: Cracks have been noted on T2 NGV’s concave side. T2 NGV’s are not part of the AMM borescope inspection. T2 NGV’s are covered by PW4ENG 72-780 – Next due in 30 cycles.

Recommendations:

Deposits (crystals) have been noted on all compressor stages. An engine wash is highly recommended.

Inspection Performed and Report Prepared by:

Inspectors name: Robert Bauer Signature:

Date: Oct. 26th 2016

IMPORTANT NOTICE

The content of this report is based on attentive inspection and review within the capabilities of the inspection equipment used (as recommended by the OEM) and in accordance with documentation and procedures noted in Section 1. It is exclusive of any damage not detectable without removal and disassembly of the unit. It is believed to be a true representation of the engine condition at the specific time of inspection and prior to any further operation. This report is submitted in confidence to the above named client and is without responsibility to others to whom it may be shown.

APMS Aviation Ltd 20 Hangar K4, Cotswold Airport, Cirencester, Gloucestershire, GL7 6BA United Kingdom

PW4000-94” Master Airworthiness Directive List

ESN: 724307 Date: 28th October 2016 MSN / Pos: PH-MPP / #2 Engine TSN: 84,463 Latest FAA AD issue date: 19th October 2016 Engine Type: PW4056-3 Engine CSN: 13,974 Latest EASA AD issue date: 24th October 2016 Compilation Date: 28th October 2016 Compilation Issue: 4 DGAC Authority Revision: 12th October 2016 Key Code: N = New; R = Revised; D = Deleted, Superseded or Cancelled EASA No. N COMPLIANCE

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

Replace the Fuel Metering Units I.A.W. SB PW4ENG A73-37 R1 as follows: FUEL METERING For FMU more than 140 FH, within 10 FH after 26- F-1988- UNITS Concerns P&W Type Mar-1988 (For DGAC CN) or 01-Sep-1989 (For FAA 039-IMP 88-03-53 N P/N's 51T217 & Not Applicable due to aircraft type 4152 installed on A310- AD) (B) 53T419. 300 Series. For FMU less than 140 FH, before 150 FH TSN. (ATA 73) Thereafter replace FMU's at interval not to exceed 150 FH. AEROQUIP bulk 601 hoses with CAGE code of 50556 Fitted on A. Within 30 days after March 30, 1989, inspect the Airbus A310 powered main fuel and vapor recovery hose assembly for fuel by PW4000 Engines leakage and determine the cure date code contained on both the main fuel supply hose and the vapor recovery hose, IAW SB A310-73- 2011 R1 The affected main fuel supply hoses contain cure date codes of 3Q84 through 2Q87. The affected TO PREVENT vapor recovery hoses contain cure date codes of 89-06-03 ENGINE N 2Q84 through 3Q87. The affected bulk 601 hose Not Applicable due to aircraft type COMPARTMENT contains a CAGE code of 50556 (regardless of cure FIRES date code).

1. If fuel leakage is detected, prior to further flight, replace the hose(s) with a serviceable hose not containing the cure date codes or CAGE code specified above, IAW the applicable service bulletin identified above. (P.T.O)

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

2. If the affected hoses are installed, but fuel leakage is not detected, repetitively inspect the hoses for evidence of fuel leakage IAW the schedule specified in the applicable service bulletin. After AEROQUIP bulk 601 TO PREVENT March 30, 1989, bulk 601 hose with CAGE code of hoses with CAGE code 89-06-03 ENGINE 50556 shall not be installed on any airplane. N Not Applicable due to aircraft type of 50556 Fitted on (Cont’d) COMPARTMENT Airbus A310 powered FIRES C. Replacement of main fuel supply and vapor by PW4000 Engines recovery hoses with serviceable hoses that do not contain the cure date codes or CAGE code specified in paragraph A., above, constitutes terminating action for the requirements of this AD.

Within the next 250 FH after 12-Feb-1990 (the effective date of this AD), or prior to accumulating 600 hours TSN on the valve, whichever occurs later, Concerns model 767 8th STAGE BLEED perform the inspections of the 8th Stage Bleed series airplanes SYSTEM CHECK System Check Valve IAW Boeing SB 767-36A0030. equipped with Allied - 90-01-09 N VALVE - Not Applicable due to aircraft type Prior to further flight, repair or replace Check Valves Signal 8th Stage Bleed INSPECTION / which do not pass all required inspections. System Check Valve, REPAIR Installation of a P/N 320544-1 valve in lieu of a P/N P/N 3202164-2 or -4 3202164-2 or -4 valve constitutes terminating action for the inspection required by this AD.

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

Within 30 days from 6-Jun-1990 replace the outboard engine fuel shutoff calve actuator bonding PREVENT wire in accordance with Boeing ASB 747-28A2143 Concerns model 747- INABILITY TO Aircraft related. 400 series airplanes FULLY OPEN AND Within 10 days after completion of the modification Willis Asset Management has equipped with PW4000 90-11-06 N CLOSE THE report all findings of wires longer than six inches to no records to confirm series engines identified OUTBOARD Seattle Manufacturing Inspection District Office. compliance to AD 90-11-06 in Boeing ASB 747- ENGINE FUEL Reports shall include the serial number of the 28A2143 SHUTOFF VALVE affected airplanes and identify positions of valves found with long straps.

A. Within the next 500 hours Time-In-Service [TIS] after March 19, 1990 (the effective date of AD 90- 04-10), or prior to the accumulation of 1,200 hours TIS on the valve, or within 30 days after June 18, 1990, whichever occurs later, perform the 90-12-02 inspections of the Pneumatic System 8th Stage Concerns model 767 [This AD 8th STAGE BLEED Bleed Check Valve specified in Hamilton series airplanes supersedes AD SYSTEM CHECK Standard SB 36-2078 R0 or R1. Prior to further equipped with Hamilton 90-04-10 which N VALVE - flight, repair or replace any Check Valves which do Not Applicable due to aircraft type Standard Pneumatic superseded AD INSPECTION / not pass all the required inspections. System 8th Stage Bleed 87-12-07 and AD REPAIR Thereafter, inspect the check valve poppet at Check Valve, P/N 86-06-01] intervals not to exceed 1,200 hours TIS, IAW 773856 Hamilton Standard SB 36-2078 R1. B. Used Check Valves must be inspected and repaired, if necessary, IAW Hamilton Standard SB 36-2078 R0 or R1, prior to installation in any Model 767 series airplane.

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

Within 60 days after 28-May-1991 or prior to accumulating 10,000 total service hours, whichever occurs later, and thereafter at intervals not to exceed 10,000 total service hours replace the engine oil filter differential pressure switches as follows: -

PREVENT FALSE 1 – For Pratt & Whitney Engines: - Replace P/N Concerns Model 767 OIL FILTER BYPASS S332T004-23 with a new -23 Switch series airplanes INDICATION OR equipped with engine oil - 91-09-15 N LOSS OF OIL 2 – For Pratt & Whitney JT9D-7R4 Engines: - Not Applicable due to aircraft type filter differential QUANTITY FROM Replace P/N S332T004-25, -25 or -29 with a new - pressure switched on FAILED PRESSURE 29 Switch. If a -2 or -25 Switch currently installed, JT9D-7R4 and PW4000 SWITCHES modification in accordance with Boeing SB 767-79- engines 0008 is required in order to install a -29 switch configuration

Pressure switches removed following the accumulation of 10,000 total service hours shall not be re-installed on any airplane

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DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

Before 09-Sep-1992 (For DGAC CN) or 05-Aug- 1993 (For FAA AD), install a placard in the flight- deck of A300-600 & A310 as per AI SIL 72-0001 Concerns P&W Types ENGINE ANTI-ICE Rev. 1 and enter in the AFM the TR's 2.04.00/7 (For 4152,4156 & 4158 F-1990- OPERATING A310) and 2.04.00/3 (For A300-600). equipped with EEC P/N 141-114 REQUIREMENT: Embodiment of AI MOD 8874 (SB's A300-73-6016 93-08-18 N Not Applicable due to aircraft type 50D436, 50D791, (B) HPC DAMAGE & or A310-73-2020) covering VSB "P&W" PW4ENG 50D824, 51D037 & R3 SURGE. 73-110 cancels the requirements listed above 50D053 fitted to A300- (ATA 72) provided both engine are equipped with FADEC 600 & A310. SCN 10E/U or SCN 10F/U installed by VSB "P&W" PW4ENG 73-122 (SB's A300-73-6018 or A310-73- 2022).

F-1990- ENGINE CONTROL CN superseded by CN PW4050, PW4052, 214-IMP --90-20-11 D MODIFICATIONS. See Superseding AD- F-1993-130-IMP (B) PW4056, PW4060, and (B) (ATA 73) AD 90-20-11 Superseded by AD 93-08-16 PW4060A Engines R1

Concerns P&W Types To prevent a LPT Shaft Break, perform an Eddy 4050,4052,4056, 4060, F-1990- LPT SHAFT Shaft inspection performed on 24th October Current Inspection I.A.W. SB PW4ENG A72-328, 4060A, 4152, 228-IMP 90-22-02 N INSPECTION. 1990. (as recorded by SIA history sheet) before 01-Jan-1991 (For DGAC CN) or 31-Oct-1990 4156,4158 and 4460 (B) (ATA 72) AD Closed. (For FAA AD). installed on B747, B767, A300 and A310 Series.

F-1991- HIGH PRESSURE 083-IMP - D COMPRESSOR. - CANCELLED CN Cancelled (B) (ATA 72) R1

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

FWD & AFT mount assemblies: ENGINE MOUNTS Possible overheat of FWD engine mounts and LINKS. omission of dip etching of AFT engine mounts (ATA 71) during the machining process. P/N 221-0245-501, perform visual inspection I.A.W. L/H FWD MOUNT SB PW4NAC 71-86 Part 1 (AI SB A300-71-6009 or Concerns P&W Types LINK. SB A310-71-2011) and a Nital Etch inspection as 4152 or 4158 per Part 2 of SB at next engine Removal. turbofan engines fitted P/N 221-0245-501, perform visual inspection I.A.W. to R/H FWD MOUNT SB PW4NAC 71-86 Part 1 (AI SB A300-71-6009 or A300B4-622, -622R and F-1991- LINK. SB A310-71-2011) and a Nital Etch inspection as A310-324. 096-121 92-19-04 R Not Applicable due to aircraft type per Part 2 of SB at next engine Removal. R2 (B) P/N 221-0262-503, perform visual inspection I.A.W. L/H OUTBOARD SB PW4NAC 71-105 Part 1 (AI SB A300-71-6008 or ENGINE MOUNT SB A310-71-2009) and perform a Dip Etch and FPI LINK. as per Part 2 of SB at next engine Removal. Concerns P&W Types P/N 221-0262-503, perform visual inspection I.A.W. 4152 or 4158 R/H SB PW4NAC 71-105 Part 1 (AI SB A300-71-6008 or turbofan engines fitted OUTBOARDENGINE SB A310-71-2009) and perform a Dip Etch and FPI to MOUNT LINK. as per Part 2 of SB at next engine Removal. A300B4-622, -622R and {P.T.O] A310-324. P/N 221-0262-503, perform visual inspection I.A.W. R/H INBOARD SB PW4NAC 71-105 Part 1 (AI SB A300-71-6008 or ENGINE MOUNT SB A310-71-2009) and perform a Dip Etch and FPI Concerns P&W Types LINK. F-1991- as per Part 2 of SB at next engine Removal. 4152 or 4158 096-121 92-19-04 P/N 221-0260-501 & P/N 221-0262-503, perform turbofan engines fitted R Not Applicable due to aircraft type R2 (B) {Cont’d} visual inspection I.A.W. SB PW4NAC 71-105 Part 1 to {Cont’d} (AI SB A300-71-6008 or SB A310-71-2009) and A300B4-622, -622R and AFT BEAM. perform a Dip Etch and FPI as per Part 2 of SB at A310-324. next engine Removal.

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

ENSURES THE INTEGRITY OF THE Concerns Model 767 FAIL SAFE series airplanes 94-12-10 N FEATURES OF THE See AD Compliance Not Applicable due to aircraft type equipped with P&W THRUST PW4000 series engines REVERSER SYSTEM Within 90 days after 24-Aug-1994 perform and inspection to detect damage to the bullnose seal on ENSURES THE the translating sleeve of the thrust reverser, and INTEGRITY OF THE perform a test of the lock mechanism of the centre Aircraft related. Concerns model 747- FAIL SAFE locking actuator in accordance with SB 747-78-2112 Willis Asset Management has 400 series airplanes 94-15-05 N FEATURES OF THE or ASB 747-78A2112 R1. no records to confirm equipped with PW4000 THRUST Repeat this inspection and test thereafter at compliance to AD 94-15-05 series engines. REVERSER intervals not to exceed 1,000 hours, Time-In- SYSTEM Service. {P.T.O] ENSURES THE Within 9 months after 24-Aug-1994, perform INTEGRITY OF THE inspections and functional tests of the thrust Aircraft related. Concerns model 747- FAIL SAFE reverser control and indication systems in 94-15-05 Willis Asset Management has 400 series airplanes N FEATURES OF THE accordance with SB 747-78-2112 or ASB 747- {Cont’d} no records to confirm equipped with PW4000 THRUST 78A2112 R1. compliance to AD 94-15-05 series engines. REVERSER Repeat these inspections and functional tests SYSTEM thereafter at intervals not to exceed 18 months

PREVENT POSSIBLE Aircraft related. Concerns model 747- Within 18 months of 25-Nov-1994, replace the thrust DEPLOYMENT OF A Willis Asset Management has 400 series airplanes 94-20-11 N reverser flow restrictor devices with one way valve THRUST no records to confirm equipped with PW4000 restrictors in accordance with ASB 747-78A2128. REVERSER IN compliance to AD 94-15-05 series engines. FLIGHT

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

Within 500 flight hours after 07-Nov-1992 (For GREEN HYDRAULIC DGAC CN) or before 23-Dec-1997 (For FAA AD), DRAIN SYSTEM perform the flow check as per SB's AI A310-72-2023 Concerns P&W Types INSPECTION AND or A300-72-6019, as applicable. 4152, 4156A & 4158 ENGINE fitted to A310-324, -325 ACCESSORY GEAR F-1992- & A300B4-622, - BOX SEAL 231-136 97-21-04 R Not Applicable due to aircraft type 622R,all MSN's pre REPLACEMENT AT Repeat the above test at interval not to exceed 500 (B) R2 MOD 10400 (SB AI THE GREEN flight hours. A310-72-2019, A300- HYDRAULIC PUMP 72-6015, VSB PAD. [P.T.O] PW4ENG 72-458). (ATA 72)

GREEN HYDRAULIC Terminating Action: DRAIN SYSTEM Before 31-Dec-1993 (For DGAC CN) or 23-Nov- INSPECTION AND Concerns P&W Types 1998 (For FAA AD) ENGINE 4152, 4156A & 4158 F-1992- Incorporate on both engines a spring loaded seal as ACCESSORY GEAR fitted to A310-324, -325 231-136 97-21-04 per SB's AI A310-72-2019 or A300-72-6015, as R BOX SEAL Not Applicable due to aircraft type & A300B4-622, - (B) R2 {Cont’d} applicable. REPLACEMENT AT 622R,all MSN's pre {Cont’d} Note: For ETOPS configured aircraft this T/A must THE GREEN MOD 10400 (SB AI be accomplished within the next 10 flights. It is HYDRAULIC PUMP A310-72-2019, A300 recommended to accomplish this modification only PAD. on one engine at a time. (ATA 72)

HPC FAILURE CAUSED BY Aircraft related. Concerns P&W Types F-1993- AIRSEAL Apply "Boeing" ASB's 747-73A2055 and 767- Willis Asset Management has 4050, 4052, 4056, 4060 130-IMP 93-08-16 N INTERFERENCE. 73A0033. no records to confirm and 4060A turbofan (B) (ATA 73) compliance to AD 93-08-16 engines only.

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

Within 4800 flight cycles or 180 days after 09-Apr- 1994 (For DGAC CN) or within 120 Days after 08- Jul-1994 (For FAA AD):

F-1994- Concerns P&W engines ENGINE MOUNTS. Identify the links & perform a FPI & ECI on the links 074-159 94-13-08 N Not Applicable due to aircraft type fitted to A300-600 & (ATA 71) as per: (B) A310. Airbus SB A310-71-2021 (SB's PW7R4 71-126 & PW4NAC 71-138). Airbus SB's A300-71-6019 (SB's APW7R4 71-126 and APW4NAC 71-138) Before accumulation of 500 flight hours after 10- Feb-1996 (for DGAC CN) or 02-Jul-1998 (for FAA AD), perform a visual inspection and replace if necessary I.A.W. Part 1 of SB PW7R4 A71-129 or Concerns P&W turbofan AFT FRAME OF PW4NAC A71-149 (Part A of AI SB's A310-71-2027 F-1996- engines Types 4152, P&W ENGINE or A300-71-6023). 020-195 98-11-19 N Not Applicable due to aircraft type 4156A or 4158 fitted to MOUNT PICK-UP. At the next Engine removal or within 4,000 CY after (B) A300B4-622, -622R and (ATA 71) 10-Feb-1996 (for DGAC CN) or 02-Jul-1998 (for A310-324, -325. FAA AD), whichever occurs first, perform FPI and ECI, and replace if necessary I.A.W. Part 2 of SB's PW7R4 A71-129 or PW4NAC A71-149 (Part B of SB's A310-71-2027 or A300-71-6023). Within 24 Months after 23-May-1996: PREVENT 1. For model 747-400 Series airplanes identified FRACTURING OF in SB 747-28A2185 R1, replace the strut fuel Concerns Model 747 THE COUPLING tubes and couplings on engine numbers 1 and series airplanes Aircraft related. NUT, WHICH 4 with new redesigned couplings. equipped with P&W Willis Asset Management has 96-08-05 N COULD RESULT IN 2. For model 747-400 series airplanes having PW4000 or CF6-80C2 no records to confirm RELEASE OF FUEL variable numbers RT641 through RT450 engines as identified in compliance to AD 96-08-05 ONTO THE ENGINE inclusive, identified in SB 747-28-2146, on SB 747-28A2185 R1, COWLING AND A engine positions 1 AND 4 install new fuel lines, and SB 747-28-2146. SUBSEQUENT FIRE shrouded fuel lines couplings and drain lines . Template Issue 43 Page 9 of 47 Template Issue Date: 29/04/2016

PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

THRUST Concerns P&W Series REVERSERS 4000 turbofan engines, To prevent AFT Cascade Support Frame Assembly INCORPORATE AFT with thrust reverser, F-1997- failure due to cracks, inspect within 250 FH after 03- CASCADE STC FAA N° SJ514NE, 012-IMP 96-13-08 N Sep-1996 I.A.W. Part 1 Interim inspection of SB, Not Applicable due to aircraft type SUPPORT FRAME installed on A300-600 (B) thereafter repeat at Int. 450 FH or modify I.A.W. SB SUPPORT and A310, STC FAA PW4NAC 78-78 R6. ASSEMBLIES,P/N's SE744NE, installed on 221-0516-503 or - MD11. 504.(ATA 78)

Concerns P&W Model 4052, 4056, 4060, To prevent Rotating airseal cracking, at the next HSI 4062, (Any time HPT Module is disassembled) and 4152, 4156A, 4158, subsequently each HSI, apply ASB PW4ENG 72- SECOND STAGE 4460, 4462, 4164 & 628 R1. F-1998- HPT ROTATING Not applicable by P/N 4168 turbofan engine,

423-IMP 98-19-03 N AIRSEALS P/N's P/N 53L030 installed with 2nd Stage High Terminating Action (B) 50L156 or 50L195. AD Closed Pressure Turbine (HPT) Within 6 Years after 09-Nov-1998, modify Second (ATA 72) rotating airseals, P/N's Stage Ring Segments and Vane Clusters and install 50L156 or 50L195 modified Rotating Airseals I.A.W. SB PW4ENG 72- installed, fitted to A300, 636 and 72-637. A310, A330, B747, B767 & MD11. Template Issue 43 Page 10 of 47 Template Issue Date: 29/04/2016

PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

Within 1,400 CIS after 12-Jan-1999, or prior to 30- Concerns only P&W Jun-1999, whichever occurs first, perform the Model following modifications: 4050,4052,4056,4060/A F-1999- /C, 030-IMP 1. Incorporate Stage 9 through 12 aluminium 4062,4152,4156,4156A, (B) oxide blade tips and grind HPC blade tips at the 4158,4160,4256,4460, rotor assembly I.A.W. P&W SB PW4ENG-72- 4462,4650 turbofan 484 R3. engine, not HIGH PRESSURE incorporating at least COMPRESSOR 2. Modify HPC 8th - 14th stage stators I.A.W. Not applicable to phase 3 engines one of the modifications 98-23-08 N (HPC) SURGE. SB PW4ENG-72-486 R1. AD Closed described in SB's listed (ATA 72) in items 1) through 6), 3. Modify 1st stage HPT cooling duct (TOBI excluding those engines Duct), install metering plug in N° 2 bearing thrust having a (-3) identifier F-1999- balance vent tube and incorporate 1st stage HPT next to the Eng. Model 030-IMP vanes with increased airflow area I.A.W. SB Number. (B) PW4ENG-72-514 R1. 1) PW4ENG 72-484 R3, 72-486 R1. 4. Incorporate HPC 13th - 15th stage zirconium 2) PW4ENG 72-484 R3, oxide blade tips I.A.W. SB PW4ENG-72-575 R1 72-575 R1,

Applies to A310 and F-1999- DEACTIVATION OF Deactivate T/Rs unless specific modifications are A300-600 A/C fitted with 181-283 98-25-51 R THRUST Not Applicable due to aircraft type embodied or specific actions carried out. JT9D7R4 or PW4000 R2 REVERSERS engines

F-1999- TO PREVENT Revision of Engine Manufacturer's Time Limits DGAC AD F-1999-202-IMP R1 (B) is 99-08-15 D See superseding. AD’s 202-IMP CRITICALLIFE- Section (TLS) superseded by F-2000-300-IMP (B).

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

R1 (B) LIMITED ROTATINGENGINE FAA AD 99-08-15 is superseded by PART 2000-12-02 FAILURE.(ATA 05,72) PREVENT POSSIBLE Concerns Model 747- F-1999- SEPARATION OF Aircraft related. 400 series airplanes 290-IMP 99-11-12 N THE ENGINE FROM See AD Compliance Willis Asset Management has powered by P&W (B) THE AIRPLANE IN no records to confirm PW4000 engines as THE EVENT OF A compliance to AD 99-11-12 listed in Boeing Alert SB PRIMARY THRUST 747-71A2283 LINKAGE FAILURE

A - Prior accumulation of 7.500 CIS, remove the affected 4th stage LPT disks & replace them with Concerns P&W model new or serviceable parts. 4056, 4152, 4156A, B - Restoration of the original life limits on affected F-1999- Not Applicable by P/N 4164, 4168 & 4460 4th STAGE LPT disks may be accomplished as follows: 380-IMP 99-15-01 N P/N 50N024 Installed Turbofan engines with DISKS: B.1) Re-operation performed on the LPT disks (B) AD Closed 4th Stage LPT Disk P/N P/N 50N924. installed in PW4164 or PW4168 Model engines IAW 50N924, See AD for (ATA 72) "PW" SB PW4 100-72-105, prior to 7.000 CIS to S/N's listed. incorporate the slotted cooling air configuration may restore life limit to 15.000 CIS. P.T.O

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

B.2) Re-operation performed on the LPT disks installed in PW4156A or PW4460 Model engines Concerns P&W model

IAW "PW" SB PW4ENG 72-657, prior to 5.500 4056, 4152, 4156A, F-1999- CIS to incorporate the slotted cooling air Not Applicable by P/N 4164, 4168 & 4460 380-IMP 99-15-01 4th STAGE LPT N configuration may restore life limit to 15.000 CIS P/N 50N024 Installed Turbofan engines with (B) {Cont’d} DISKS: B.3) Re-operation performed on the LPT disks AD Closed 4th Stage LPT Disk P/N {Cont’d} P/N 50N924. installed in PW4152 or PW4056 Model engines 50N924, See AD for (ATA 72) IAW "PW" SB PW4ENG 72-657, prior to 4.500 S/N's listed. CIS to incorporate the slotted cooling air configuration may restore life limit to 20.000 CIS. DGAC AD F-1999-402-IMP (B is F-1999- HPC SURGE superseded by F-2002-065-IMP (B) 402-IMP 99-17-16 D EVENT. See Superseding AD’s R1 (B) (ATA 72) FAA AD 99-17-16 is superseded by 2001-25-11

747-400 series Within 24 months after 24-Jan-2000, replace the airplanes powered by

existing deactivation PIN, PIN bushing in the AFT PW4000 engines as PREVENT FAILURE Aircraft related. F-2000- cascade mountain ring, and insert flange on each listed in Boeing Alert SB OF THE THRUST Willis Asset Management has 046-IMP 99-26-02 N thrust reverser half, with new, improved components 747-78A2165R1, and REVERSER no records to confirm (B) in accordance with Boeing ASB 747-78A2165R1 767 series airplanes DEACTIVATION compliance to AD 99-26-02 (Model 747-400 series airplanes) or Boeing ASB powered by PW4000 PINS 767-78A0080 (for model 767 series airplanes). series engines as listed in Boeing ASB 767- 78A0080.

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

PREVENT Concerns Model 767 POSSIBLE series airplanes SEPARATION OF F-2000- powered by P&W THE ENGINE FROM 047-IMP 99-26-09 N See AD Compliance Not Applicable due to aircraft type PW4000 and JT9D THE AIRPLANE IN (B) series engines, as listed THE EVENT OF A in Boeing Alert SB 767- PRIMARY THRUST 71A0087 LINKAGE FAILURE PREVENT A SLIDER Concerns Model 747- DISENGAGING 400 series airplanes FROM THE powered by P&W AUXILIARY TRACK PW4000 series Aircraft related. ASSEMBLY, WHICH engines, line numbers F-2000- Willis Asset Management has COULD LEAD TO 696 through 1100 291-IMP 2000-11-28 N See AD Compliance no records to confirm SEPARATION OF A inclusive, and model (B) compliance to AD 2000-11-28 PORTION OF THE 767-200 and -300

THRUST series airplanes REVERSER FROM powered by PW4000 THE AIRPLANE line numbers 1 through DURING FLIGHT. 646 inclusive.

REVISION OF F-2000-300-IMP

ENGINE MANUAL (B) superseded by F-2002-145-IMP (B) Concerns All PW4000 - F-2000- 2000-12-02 D TIME LIMITS See Superseding AD’s 94/-100/-112 Series 300-IMP SECTION. 2000-12-02 superseded by AD 2002-03-08 Engines, R1 (B) (ATA 05,72)

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

For airplanes identified in Boeing SB 747-78-2155 R2, Accomplish the requirements of paragraphs (a)(1) and (a)(2) of this AD at the times specified in those paragraphs. Accomplishment of these actions constitutes terminating action for the inspections and tests required by paragraph (a) of AD 94-15-05. Within 4,000 hours TIS after accomplishment of PREVENT paragraph (a) of this AD, or production equivalent; INADVERTENT Aircraft related. F-2000- or within 1,000 hours TIS after the effective date of DEPLOYMENT OF A Willis Asset Management has Applicable to B747 A/C 323-IMP 2000-12-21 N this AD, whichever occurs later: Perform a functional THRUST no records to confirm only R1 (B) test to detect discrepancies of the additional locking REVERSER DURING compliance to AD 2000-12-21 system on each engine thrust reverser, in FLIGHT. accordance with Appendix 1 of this AD. Prior to further flight, correct any discrepancy detected and repeat the functional test of that repair, in accordance with the procedures described in the Boeing 747-400 AMM. Repeat the functional test thereafter at intervals not to exceed 4,000 hours TIS.

LIMITATION OF Concerns PW4000-94"

NUMBER OF "HPC (B747, B767 & MD-11 F-2000- CBS" CONFIG DGAC AD superseded by F-2001-346-IMP. applications} which 470-IMP 2000-22-01 D See Superseding ADs ENGINE INSTALLED FAA AD superseded by 2001-15-12 have embodied Cut- (B) ON EACH Back Stator Vanes as R1 AIRPLANE. per PW4000 SB 72-706 (ATA 72) R3 or SB 72-711

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

Concerns PW4000-94 Series Turbofan F-2001-013-IMP superseded by F-2001-113- LPT 4th STAGE AIR Engines with LPT 4th F-2001- IMP (B). 2000-25-06 D SEAL FAILURE. See Superseding ADs Stage air seal P/N's 013-IMP (ATA 72) 50N478 or 50N478-001 R1 (B) AD 2000-25-06 superseded by 2001-05-07 installed.

FOR AIRPLANES THAT HAVE EARLY Applicable to B747 & Correction of Flight Manual performance figures due Aircraft related. F-2001- PRODUCTION FAN B767 Applications to reduced thrust from pre mod standard Fan Willis Asset Management has 066-IMP 2001-01-10 N BLADES having early-production Blades. The actions shall be done IAW Boeing Telex no records to confirm (B) INSTALLED ON ALL Fan Blades (Phase 0/1, M-7200-00-02672, including Attachments. compliance to AD 2001-01-10 ENGINES FB2B or FB2T).

Applicable to A310-324, A310-325, and A300 The actions shall be done IAW Airbus A310 Flight B4-622R series FOR AIRPLANES Manual Temporary Revision 5.03.00/01, dated airplanes; with PW4000 THAT HAVE EARLY F-2001- January 22, 2001; Airbus A310 Flight Manual series engines, NOT PRODUCTION FAN 086 R2 2001-09-05 R Temporary Revision 5.03.00/02, dated January 22, Not Applicable due to aircraft type fitted with current- BLADES (B) 2001; and Airbus A300-600 Flight Manual production FB2C Fan INSTALLED ON Temporary Revision 5.03.00/01, dated January 22, Blades (Phase 3 Fan BOTH ENGINES 2001; as applicable. Blades) on both engines.

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

Replace the 4th Stage Air Seal P/N 50N478 with a serviceable part P/N's 51N038 or 50N478-001 before the following limits (If limit exceeded, replace prior to further flight): Concerns PW4000-94 8.000 CSN for PW4052, 4060,4060A, 4156 & 4158 Series Turbofan F-2001- LPT 4th STAGE AIR fewer than 8.000 CSN.8.000 CSN for PW4056, Not applicable by P/N Engines with LPT 4th 113-IMP 2001-05-07 N SEAL 4152,4156A, and 4460 post SB PW4ENG72-657R1 P/N 50N009 Installed Stage air seal P/N's (B) FAILURE.(ATA 72) fewer than 8.000 CSN.4.500 CSN for PW4056, AD Closed 50N478 or 50N478-001 4152,4156A, 4460 pre SB PW4ENG72-657R1 fewer installed. than 4.500 CSN.8.000 CSN for PW4056, 4152,4156A, and 4460 not identified in Table 3 of AD and fewer than 8.000 CSN. 7.000 CSN for PW4062 & 4462 fewer than 7.000 CSN.

MULTIPLE ENGINE F-2001- Concerns PW4000-94" POWER DGAC AD superseded by F-2001-205-IMP 147-IMP Series Turbofan 2001-08-52 D LOSSES DUE TO See Superseding ADs (B). (B) Engines Having ESNs HPC SURGE. FAA AD superseded by 2001-09-07 R1 Listed in the AD. (ATA 72)

F-2001- ENG REV UNLOCK' Applies to A310 and - N Revision of AFM procedure Not Applicable due to aircraft type 186 (B) PROCEDURE A300-600 Aircraft

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

MULTIPLE ENGINE Concerns PW4000-94" F-2001- POWER LOSSES Series Turbofan 205-IMP DGAC AD superseded by F-2001-346-IMP. 2001-09-07 D DUE TO See Superseding ADs Engines Having (B) FAA AD superseded by 2001-15-12 HPC SURGE. Configurations and R1 (ATA 72) ESNs Listed in the AD.

Applicable to MD 11 ENSURING THAT airplanes with PW4460 FLIGHT CREW IS AFM Revision: Performance section 4A or 4B. or PW4462 engines INFORMED OF 2001-09-10 N Perform restoration of the leading edge contour Not Applicable due to aircraft type having FB2B Fan LIMITATIONS IN every 450 cycles. Blades installed: AIRPLANE This AD superseded PERFORMANCE AD 2001-07-08 MAIN BEAM P/N 221-4005-1 (Assy P/N 221-4005- 501): Concerns P&W Model Limit life of Main Beam installed on PW 4156A 4152, 4156A & 4158 FWD ENGINE F-2001- (A310-325) to 20.000 FC. Turbofan engine fitted - N MOUNT. Not Applicable due to aircraft type 264 (B) to A300B4-622, B4- (ATA 71) CROSS BEAM P/N 221-0242-5 (Assy P/N 221- 622R, -F4-622R & 0242-501): A310-324, -325. Installation restricted to PW 4152 Engines.

MULTIPLE ENGINE Concerns PW4000-94" F-2001- POWER LOSSES Series Turbofan DGAC AD superseded by F-2002-065-IMP. 346-IMP 2001-15-12 D DUE TO See Superseding ADs Engines Having FAA AD superseded by 2001-25-11 (B) HPC SURGE. Configurations and (ATA 72) ESNs Listed in the AD.

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

DETECTION OF Concerns P&W Model PREMATURE DGAC AD is superseded by F-2002-394-IMP 4050, 4052, 4056, F-2001- CRACKING OF THE (B). 4060, 4062, 4152, 514-IMP 2001-20-13 D See Superseding ADs HPC FRONT DRUM FAA AD superseded by 2002-12-15 4156A, 4158, 4460 & R1 ROTOR 4462 Turbofan engines. (ATA 72)

THRUST REVERSER - Applies to A310 and F-2001- - R IMPLEMENTATION Embody S/B A310-78-2019 or A300-78-6020 Not Applicable due to aircraft type A300-600 A/C fitted with 523 R1 OF THIRD LINE OF JT9D7R4 or PW4000 DEFENCE engines

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

Prior to the accumulation of 10,000 hours TIS or within 180 days after the effective date of this AD, PREVENT THE whichever occurs later: Do a one-time detailed POTENTIAL FOR visual inspection of the wire bundles located in the F-2001- DUAL WIRE aft section of the strut forward fairing panel of both Applicable to B767 A/C 621-IMP 2001-24-01 N FAULTS FROM engine struts to detect chafing damage, per Boeing Not Applicable due to aircraft type only (B) GROUNDED, SB 767-73A0049, R3, or R4. SEPARATED, OR If any chafing damage of any wire bundle is found, SHORTED WIRES do the actions required by paragraphs (a)(1) and (a)(2) of this AD at the times specified in those paragraphs. PREVENT For Model 747-400 and 747- 400F series airplanes, BLOCKAGE OF THE line numbers 696 through 1061 inclusive equipped CHECK TEE VALVE with PW4000 engines: Within 30 days after April 25, Aircraft related. AND CRACKS IN 2000 (the effective date of AD 2000-07-10), perform Willis Asset Management has Applicable to B747 A/C 2002-19-12 N THE FIRE a detailed inspection to detect cracking of the fire no records to confirm only EXTINGUISHER extinguisher discharge tubes in the number 2 and compliance to AD 2002-19-12 DISCHARGE TUBES number 3 engine struts, in accordance with Boeing IN THE ENGINE Alert SB 747- 26A2266. STRUTS

PREVENTION OF F-2002- ENGINE POWER DGAC AD cancelled, superseded by Concerns PW40-94 065-IMP 2001-25-11 D LOSSES DUE TO See Superseding ADs F-2002-564-IMP (B). Series0 Turbofan (B) HPC SURGE. FAA AD is superseded by AD 2002-21-10 engines. R1 (ATA 72)

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

TO PREVENT DGAC AD is cancelled at Rev 1, due to the CRITICAL issue of FAA AD 2005-25-09. LIFE-LIMITED F-2002- Concerns All PW4000 - ROTATING 145-IMP 2002-03-08 D See Superseding ADs FAA AD is superseded by 2005-25-09 94/-100/-112 Series ENGINE PART (B) Engines. FAILURE.

(ATA 05)

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HPC 5th Stg Disk

HPC Front Drum Inspected performed on th HPC Rear Drum 4 May 2005

LPC Front Hub Before 12-Aug-2006, revise the manufacturer's LPT 5th Disk Time Limits Section of the LPT 6th Disk Manufacturer's Engine N TO PREVENT Manual, P/N's 50A443,

CRITICAL 50A605, 50A822, th LPT 4 Disk Inspected performed on F-2002- LIFE-LIMITED 51A342, 51A345, and Concerns PW4000-94/ 2005-25-09 th 145-IMP ROTATING 51A751 AND for Air 5 May 2005 At next piece part level -100 / -112 Engine R R1 (B) ENGINE PART Carrier Operations, revise Series FAILURE. the Approved Continuous rd (ATA 05, 72) Airworthiness LPT 3 Disk Maintenance Program by adding paragraph (f) (1) of the AD.

Hub Turb Front

Inspected performed on 16-May-11

nd Hub Turb Rear 2

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PREVENTION OF Before 31-Dec-2002, replace the flexible hose FAILURE OF THE assembly P/N 113286 by a newly certified hard line OIL PRESSURE P/N 221-5318-501. Concerns PW 4000 INDICATOR AND See also VSB PW4NAC A79-21. series fitted to A300- F-2002- LOW-OIL 600 or A310, PRE AIB 173-IMP 2003-25-06 N PRESSURE Within 8 months after the effective date (22 Jan Not Applicable due to aircraft type MOD 12468 (SB A300- (B) WARNING 2004) of this AD, replace the existing flexible hose 79-6003 or A310-79- "Titeflex" OIL assembly, P/N 113286 with P/N 221-5318-501. 2004). CIRCUIT FLEXIBLE Before further flight after the replacement, perform a HOSE. test of the engine oil system, per the (ATA 79) accomplishment instructions of the service bulletin specified as applicable.

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1-Perform an initial inspection of HPC front rotors IAW on-wing §1 through 13 of PW ASB PW4ENG A72-722 or Rev. 1): within 500 CIS after N accumulating 1,000 CSN, for HPC front drum rotor less than 1,000 CSN on 31-Jul-2002, or within 500 CIS after 31-Jul-2002, for HPC front drum rotor with 1,000 CSN or more. Concerns P&W Model 4052, 4056, 4060, 2-If the presence of a crack needs to be confirmed, DETECTION OF Inspection N perform an E/C inspection within 5 cycles after item 4062, 4152, 4156A, F-2002- PREMATURE performed on 28th Next Inspection due 4158, 4460 & 4462 1. 394-IMP 2002-12-15 CRACKING OF THE May 2011 at at CSN: 14,381 Turbofan engines. 3-If the presence of a crack needs to be confirmed, (B) HPC FRONT DRUM CSN: 12,181 (Engine Time) SUPERSEDES CN and the suspect crack indication extends from the ROTOR(ATA 72) (Engine Time) 2001-514-IMP N knife-edges to the disk radius directly adjacent to SUPERSEDES AD spacer wall of the sixth or seventh stage, perform an 2001-20-13. E/C inspection before further flight. 4-If the presence of a crack is confirmed, remove N and replace the HPC front drum rotor before further flight. 5-Repeat every 2.200 CSLI, inspection of items 1, N and if necessary items 2, 3 or 4.

PREVENTION OF F-2002- ENGINE POWER DGAC AD cancelled, superseded by F-2003- Concerns PW40-94 564-IMP 2002-21-10 D LOSSES DUE TO See Superseding ADs 237-IMP. Series0 Turbofan (B) R2 HPC SURGE. FAA AD is superseded by AD 2003-11-18. engines. (ATA 72)

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Concerns P&W Model PREVENTION OF 4050, 4052, 4056, 4060, F-2003- ENGINE POWER DGAC AD cancelled, superseded by F-2003- 4060A, 4060C, 4062, 237-IMP 2003-11-18 D LOSSES DUE TO See Superseding ADs 382-IMP (B) 4152, 4156, 4156A, R1 HPC SURGE. FAA AD superseded by 2003-19-15. 4158, 4160, 4460, 4462 (ATA 72) & 4650 Turbofan engines... PREVENTION OF Determine the engine configuration as per table 1 of ENGINE POWER present AD. SB 72-755 (RCC Mod) performed on 21st May Concerns PW4000-94" F-2003- 2003-19-15 N LOSSES DUE TO Thereafter, determine the applicable limits 2005 as terminating action Series Turbofan 382-IMP HPC SURGE. depending on the engine configuration. AD Closed Engines (ATA 72) See AD for details.

Within 18 months after the effective date (17 Aug Applicable to A300-600 PREVENTION OF IN- 2004) of this AD, install modifications related to an Series and A310 Series FLIGHT 2004-14-17 N independent third line of defence on the thrust Not Applicable due to aircraft type Airplanes; Equipped DEPLOYMENT OF A reversers, in accordance with the applicable SEB With JT9D-7R4 or THRUST REVERSER listed in table 2 PW4000 Series Engines (a) Within 18 months after the effective date of this TO PREVENT AD: Carry out the modifications and functional tests INADVERTENT of the wiring of the wire integration unit (WIU) and COMMANDED Applicable to Boeing the ASCTU iaw Boeing SB 747–36A2136 R2. Before Aircraft related. SHUTDOWN OF THE 747–400, –400D, and – further flight, carry out the post-installation tests in Willis Asset Management has 2004-22-04 N ENGINE BLEED AIR 400F series AC as listed accordance with the SB. no records to confirm DISTRIBUTION in Boeing SB 747– compliance to AD 2004-22-04 SYSTEMS DUE TO 36A2136 R2. (b) As of the effective date of this AD, no person may AN ERRONEOUS install on any airplane an ASCTU with applicable ASCTU COMMAND. P/N listed in Hamilton Sundstrand SB 36–186.

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CERTIFICATION LIMITATIONS - DGAC AD F-2005-123 (B) is Cancelled By F-2005- See Entry for AD CERTIFICATION See Superseding AD A310, A300-600, & D DGAC AD F-2005-123 R1 (B) Due To The 123 (B) 2007-14-05 MAINTENANCE A300-600ST Aircraft Release of EASA AD 2013-0072 REQUIREMENTS (CMR).

Within 18 months of the effective date of this AD TO PREVENT All PW4000 engines replace oil tube P/N 113286 with P/N 221-5318-501. 2005-02-06 N ENGINE FIRE DUE Not Applicable due to aircraft type installed on MD-11 or Do the replacement with the accomplishment TO OIL LEAKAGE. MD-11F Aircraft instructions of Boeing Alert SB MD11-79A008

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HPC 5th Stg Disk Within the next 60 days after the effective date of HPC Front Drum this AD, revise the Time Inspected performed on 4th May 2005 Limits Section (TLS) of HPC Rear Drum the Engine Manuals (EMs), Part Numbers LPC Front Hub 50A443, 50A605, PW4000 SERIES This AD supersedes AD 50A822, 51A342, TURBOFAN LPT 5th Disk 2002-03-08. AD applies 51A345, and 51A751, as 2005-25-09 N ENGINES TIME At next piece part level to all PW4000-94"/- applicable Air carriers to LIMITS SECTION LPT 6th Disk 100"/-112" engine revise the approved Inspected performed on REVISION th Models. continuous airworthiness th 5 May 2005 maintenance program, by LPT 4 Disk

adding the applicable rd parts of paragraph (f)(1) LPT 3 Disk of this AD under the Hub Turb Front heading: “MANDATORY Inspected performed on INSPECTIONS". 16-May-11 Hub Turb Rear 2nd

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(1) Not later than 22 November 2007, revise the Airworthiness Limitations section of the Instructions for Continued Airworthiness by incorporating Airbus A300-600 CMR AI/ST5/829/85, Issue 12, (for Model A300- See 600 series airplanes); or Airbus A310 CMR A300-600, A300-600ST REVISION OF Entry AI/ST5/849/85, Issue 12, (for Model A310 and A310 Airplanes AIRWORTHINESS For 2007-14-05 N series airplanes); as applicable. Not Applicable due to aircraft type Fitted with CF6-80A, LIMITATIONS ITEMS F-2005- TES NOTE: Only CMR Task MSI 73.21.01 is engine- CF6-80C2, JT9D-7R4 & SECTION 123 (B) related, applicable to PW4000-powered A300-600 PW4000 Engines airplanes. MPD Task 732300-P1-1, FADEC Ground and BITE Test, covers this Task at intervals of 1000 FH. (P.T.O)

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Accomplish the actions specified in the applicable CMRs at the intervals specified in the applicable CMRs, except as provided by paragraph (2) below. Where the CMRs specify to contact the Direction Générale de l'Aviation Civile (DGAC), operators are required to contact the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA, for such See A300-600, A300-600ST REVISION OF approvals. The actions must be accomplished in Entry and A310 Airplanes 2007-14-05 AIRWORTHINESS accordance with the applicable CMRs. (2) For tasks For N Not Applicable due to aircraft type Fitted with CF6-80A, (Cont’d) LIMITATIONS ITEMS identified in MSI 78.30.00, "Thrust Reverser F-2005- CF6-80C2, JT9D-7R4 & SECTION Actuation and Cowling,'' of Section 2, "CMR `Two 123 (B) PW4000 Engines Star' Tasks,'' of Airbus A300-600 CMR AI/ST5/829/85, Issue 12, and Airbus A310 CMR AI/ST5/849/85, Issue 12: The initial compliance time is within 2,000 flight cycles after 22 August 2007 or 22 August 2008, whichever occurs later. Thereafter, actions identified in MSI 78.30.00 must be accomplished within the repetitive interval specified in the applicable CMRs

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One-time Visual Inspection and Reporting Requirements (f) Within 600 operating hours after January 8, 2009 (the effective date of this AD): (1) Perform a one-time visual inspection of the EEC- 131 model EECs to identify, categorize, and mark them as a Group 1, Group 2, Group 3, or Group 4 Applicable to PW4052, EEC. PW4056, PW4060, (2) Use paragraphs 1 through 7 in the N-2008- ENGINE FUEL AND Group 4 EEC installed with S/N 4000-0587 PW4062, PW4152, 2008-24-13 N Accomplishment Instructions of SB PW4000- A73- 24-13 (B) CONTROL AD Closed PW4156A, PW4158, 214 R2 to inspect, categorize, and mark the EECs. PW4460, and PW4462 (3) Within 30 calendar days of completing paragraph turbofan engines (f)(1) of this AD, report all inspection findings to Kevin Dickert, Engine Certification Office, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803. (4) The Office of Management and Budget (OMB) has approved the reporting requirements and assigned OMB control number 2120-0056.

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Replacement of Group 1 EECs (g) Replace Group 1 EECs with a serviceable EEC before reaching 2,000 cycles-in-service (CIS) after January 8, 2009, but not later than January 8, 2010.

Replacement of Groups 2, 3, and 4 EECs Applicable to PW4052, (h) Replace the following groups of EECs with a PW4056, PW4060, N-2008- 2008-24-13 ENGINE FUEL AND serviceable EEC, or any EEC that does not violate Group 4 EEC installed with S/N 4000-0587 PW4062, PW4152, 24-13 (B) N {CONT’D} CONTROL the EEC installation procedure as provided by AD Closed PW4156A, PW4158, {Cont’d} paragraphs (k), (l), and (m) of this AD, as follows: PW4460, and PW4462 (1) Group 2 EECs, before reaching 5,000 CIS after turbofan engines January 8, 2009, but not later than July 8, 2011. (2) Group 3 EECs, before reaching 13,000 CIS after January 8, 2009, but not later than July 8, 2015. (3) There are no scheduled replacement requirements for Group 4 EECs.

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Definition of Serviceable EECs (i) A serviceable EEC is an EEC that does not violate the EEC installation procedure as provided by paragraphs (k), (l), and (m) of this AD, or a Group 4 EEC. (j) Information on obtaining a serviceable EEC can be found in SB PW4000- 73-216.

EEC Installation Prohibition (k) Do not install any Group 1 EEC after January 8, 2010 or any Group 1 EEC that has accumulated an Applicable to PW4052, additional 2,000 CIS from January 8, 2009. PW4056, PW4060, N-2008- 2008-24-13 ENGINE FUEL AND (l) Do not install any Group 2 EEC after July 8, 2011 Group 4 EEC installed with S/N 4000-0587 PW4062, PW4152, 24-13 (B) N {CONT’D} CONTROL or any Group 2 EEC that has accumulated an AD Closed PW4156A, PW4158, {Cont’d} additional 5,000 CIS from January 8, 2009. PW4460, and PW4462 turbofan engines (m) Do not install any Group 3 EEC after July 8, 2015 or any Group 3 EEC that has accumulated an additional 13,000 CIS from January 8, 2009. Previous Credit (n) Inspecting, categorizing, and marking of EECs before January 8, 2009 performed using the Accomplishment Instructions of SB PW4000- A73- 214 original issue or Revision 1, satisfy the requirements of paragraph (f)(1) of this AD.

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Airbus SBs ENGINE EXHAUST – A310-78-2030 CENTRE LATCH OF A300-600 & A310 A300-78-6029 THRUST REVERSER Series Aircraft 2008- N Pratt & Whitney SBs 2010-04-02 DOOR OPENING Not Applicable due to aircraft type Equipped with PW4000 0226 R1 PW4NAC 78-113 MECHANISM – Or JT9D-7R4 Series PW4NAC 78-119 REPLACEMENT / Engines PW7R4 78-182 INSPECTION PW7R4 78-184

French-Registered UF-2010- For aircraft operated in areas suspected of Volcanic Aircraft Operated in MAINTENANCE Not Applicable due to Dutch registered 01 R1 R Ash contamination, perform the maintenance Areas Suspected of INSTRUCTIONS aircraft. (AB) actions detailed in the AD. Volcanic Ash Contamination

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Perform a local fluorescent penetrant inspection for cracks in the HPC Drum Rotor Disk Assembly Blade Locking and Loading Slots of the specific stages of the HPC Drum Rotor Disk Assemblies from which any of the blades are removed as specified in Table 1 of the AD. Use the Accomplishment Instructions of PW4052, PW4056, SB PW4000-72-796, SB PW4G-100-72-186 R1 or PW4060, PW4062, 2010-18-13 PW4062A, PW4074, D SB PW4G-112-72-264 R2, as applicable to the ENGINE - HP engine model. PW4077, PW4077D, COMPRESSOR PW4084D, PW4090, N-2010- DRUM ROTOR DISK SUPERSEDED BY FAA AD 2012-18-17 PW4090-3, PW4152, 18-13 (B) Remove from service any HPC Drum Rotor Disk ASSEMBLY - Assembly found with a crack in the Blade Loading PW4156A, PW4158, 2010-18-13 D INSPECTIONS And Locking Slots of the HPC Drum Rotor Disk PW4164, PW4168, (AMOC) Assembly. PW4168A, PW4460, NOTE: FAA AD 2010-18-13 (AMOC) permits and PW4462 turbofan returning the other stages of the Drum Rotor Disk engines Assembly to service if they are not cracked, and if the cracked stages of the HPC Drum Rotor Disk Assembly are replaced by new disks per the disk replacement repairs in the CIR manual.

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Compliance is required the next time the No. 3 Bearing Oil Pressure Tube is in the piece-part condition after 28-Dec-10, the effective date of this AD, unless the actions have already been done: f) Perform a one-time visual inspection of the exterior of the No. 3 Bearing Oil Pressure Tube for cracks and evidence of being repaired. (1) Remove the tube from service if any cracks are AD performed by PW4000-94 / -100 / -112 N-2010- NO. 3 BEARING OIL At Next Piece part 2010-24-09 N found. installing new Tube. Series Turbofan 24-09 (B) PRESSURE TUBES condition (2) Remove the tube from service if found repaired, At 16th May 2011 Engines or if suspected that the tube was repaired. (g) After 28-Dec-10, do not install any repaired No. 3 Bearing Oil Pressure Tube into any engine. (h) Guidance on the No. 3 bearing oil pressure tube visual inspection can be found in Chapter 72- 41-20 of the applicable Clean, Inspect, Repair Manual (CIRM)

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A. PW4000-94” engines with HPC RCC SBs 72-755, 72-756, 72-757, 72-759, and PW4G-100” engines with conversion SB 72-220 embodied, if equipped with a 9th stage compressor stator segment assembly with 24 slots: Perform the Initial Inspection within 7,200 cycles-in- service (CIS) since incorporation of the referenced S/Bs or within 1,000 CIS after 21-Jan-2011 (the effective date of this AD), whichever occurs later. Use the Instructions of SB PW4000-72-799 R1 or 2010-24-14 SB PW4G-100-72-226 to do the inspections, as Inspection performed N-2010- N Inspection due at PW4000-94 / -100 HP COMPRESSOR applicable to the engine model. on 16th May 2011 at 24-14 (B) CSN 19,381 (Engine Series Turbofan 2010-24-14 STAGE 10 DISK CSN 12,181 (Engine Time) Engines (AMOC_Jun-11) N B. PW4168A-1D and PW4170 with ESNs P735001 Time) through P735039 Perform the Initial Inspection within 7,200 CSN or within 1,000 CIS after 21-Jan-2011, whichever occurs later. Use the Instructions of SB PW4G-100- 72-226 to do the Inspections.

If a crack is found, remove the HPC drum rotor disk assembly from service.

P.T.O

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Repetitive Inspections of the AVT Shelf Slots Perform a BSI or FPI for cracks in the AVT shelf slots on the 10th stage HPC disk of the HPC drum rotor disk assembly within every 7,200 cycles-since- last-inspection.

Optional Terminating Action 2010-24-14 (l) As optional terminating action to the repetitive Inspection performed N-2010- N Inspection due at PW4000-94 / -100 HP COMPRESSOR inspection requirements of this AD, install new 9th on 16th May 2011 at 24-14 (B) 2010-24-14 CSN 19,381 (Engine Series Turbofan STAGE 10 DISK stage compressor stator segments, part number CSN 12,181 (Engine {Cont’d} (AMOC_Jun-11) Time) Engines N (P/N) 50S479-01, P/N 50S479-02, P/N 50S479-03, Time) {Cont’d} and P/N 50S479-04, and perform one of the following: (1) At the time the new 9th stage compressor stator segments are installed, replace the HPC drum rotor disk assembly with a new, 0 cycle, HPC drum rotor disk assembly; ; or P.T.O.

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Optional Terminating Action (Cont’d) (2) At the time the new 9th stage compressor stator segments are installed, replace the 10th stage HPC disk with a new, 0 cycle, 10th stage HPC disk; or (3) Perform a one-time BSI or FPI for cracks in the AVT shelf slots on the 10th stage HPC disk of the HPC drum rotor disk assembly between 4,000 and 2010-24-14 7,200 cycles-in-service since installation of the new Inspection performed N-2010- N Inspection due at PW4000-94 / -100 HP COMPRESSOR 9th stage compressor stator segments. on 16th May 2011 at 24-14 (B) 2010-24-14 CSN 19,381 (Engine Series Turbofan STAGE 10 DISK (i) If a crack is found, remove the HPC drum rotor CSN 12,181 (Engine {Cont’d} (AMOC_Jun-11) Time) Engines N disk assembly from service. Time) {Cont’d} (ii) If no crack is found, then no further inspections are required. (4) Guidance on installation of the new 9th stage compressor stator segments can be found in SB PW4000-72-801 R1 or SB PW4G-100-72-225, as applicable to the engine model.

No later than 15-Jun-2014, modify the Thrust 747-400, 747-400D, and THRUST REVERSER Reverser Control System wiring to the Flap Control Aircraft related. 747-400F Series N-2011- CONTROL SYSTEM - Unit (FCU) in the P252 and P253 Thrust Reverser Willis Asset Management has 2011-10-02 N Airplanes Equipped With 10-02 (B) WIRING Relay Panels, in accordance with the no records to confirm CF6-80C2 or PW4000 MODIFICATION Accomplishment Instructions of Boeing Alert SB compliance to AD 2011-10-02 Series Engines 747-78A2184 R1.

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At the next piece- part exposure after 10-Jan-2012 (the effective date of this AD), or before ENGINE - HPT accumulating the number of cycles listed in the PW4000-94'' (-3), (-3A), STAGE 1 AND HPT applicable Table; New limits will be or (-3B) Series Engines; STAGE 2 AIRSEALS Remove P/N 50L879, HPT Stage 1 Airseal, N-2011- No piece part applied at next piece PW4164, PW4164C, 2011-25-09 N AND HPT STAGE 1 observing Table 1 of the AD; 25-09 (B) opportunity part opportunity PW4164C/B, PW4168, AIRSEAL RINGS - Remove P/N 53L030, HPT Stage 2 Airseal, and PW4168A Engine LIFE LIMITS observing Table 2 of the AD; Models REDUCTION Remove P/N 50L664, HPT Stage 1 Airseal Rings, observing Table 3 of the AD

ENGINE - HPT Installation Prohibition PW4000-94'' (-3), (-3A), STAGE 1 AND HPT After 10-Jan-2012, do not install any Stage 1 HPT New limits will be or (-3B) Series Engines; N-2011- STAGE 2 AIRSEALS Airseal, P/N 50L879, Stage 2 HPT Airseal, P/N 2011-25-09 No piece part applied at next piece PW4164, PW4164C, 25-09 (B) N AND HPT STAGE 1 53L030, or Stage 1 HPT Airseal Ring, P/N 50L664, {Cont’d} opportunity part opportunity PW4164C/B, PW4168, {Cont’d} AIRSEAL RINGS - that is at piece-part exposure and exceeds the new and PW4168A Engine LIFE LIMITS life limit listed in Table 1, Table 2, or Table 3 of this Models REDUCTION AD. (f) Replacement of Affected FMUs At the next shop visit after 05-April-2012 (the effective date of this AD), remove FMU P/Ns PW4000-94" Series 53T335 (HS P/N 801000-1), 55T423 (HS P/N Engines Fitted With Fuel 801000-2), and 50U150 (HS P/N 801000-3) and Metering Units (FMUs) install an FMU that incorporates the modification in CERTAIN FUEL P/Ns paragraphs 3.C through 3.E of the Accomplishment N-2012- METERING UNITS 801000-4 FMU installed with S/N F27124 53T335 (HS P/N 2012-04-04 N Instructions of Hamilton Sundstrand Alert SB 04-04 (B) (FMUS) - AD Closed 801000-1); JFC131-2-73-A24 R1. REPLACEMENT 55T423 (HS P/N

801000-2) ; (g) Installation Prohibition 50U150 (HS P/N After three years from 05-April-2012, do not install or 801000-3) re-install an FMU P/N 53T335 (HS P/N 801000-1), 55T423 (HS P/N 801000-2) or 50U150 (HS P/N 801000-3) onto any engine. Template Issue 43 Page 39 of 47 Template Issue Date: 29/04/2016

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(f) Inspection and Cleaning of No. 4 Bearing Compartment for Coking (1) Within 1,000 Cycles-In-Service (CIS) after 27- ENGINE - NO. 4 All PW4000-94" April-2012 (the effective date of this AD), inspect BEARING Turbofan Engines, and clean the No. 4 bearing compartment. COMPARTMENT including models with (2) Thereafter, within every additional 1,000 CIS, re- AND OIL PRESSURE any dash number suffix, inspect and clean the No. 4 bearing compartment. th AND SCAVENGE SB 79-76 Performed on 20 May 1998 which have not N-2012- SB 72-472 Performed on 20th May 1998 2012-06-18 N TUBES incorporated the 06-18 (B) (g) Modification To Stop Build-up of Coking in SB 72-436 N/A due to Post SB 79-76 and 72-472 COKING - modifications introduced the No. 4 Bearing Compartment, and Re-routing AD Closed INSPECTIONS, by SB PW4000-72-472, of the No. 4 Bearing Pressure and Scavenge CLEANING, AND SB PW4000-79-76 and Tubes ENGINE Alert SB PW4000-A72- At the next engine shop visit, but not to exceed 5 MODIFICATIONS 436 years after 27-April-2012, perform the replacements and modification listed in steps (g)(1) though (g)(9) of the AD.

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DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

(f) Removal of HPT Stage 1 Front Hubs From Service (1) For HPT Stage1 Front Hubs listed in paragraph (c)(1) of this AD, do the following: (i) If the HPT Stage1 Front Hub has accumulated 17,000 or fewer cycles-since-new (CSN) on 28-Sep- 2012 (the effective date of this AD), remove the HPT Stage1 Front Hub from service before accumulating ENGINE - CERTAIN 18,000 CSN. PW4000-94'' and HPT STAGE 1 (ii) If the HPT Stage1 Front Hub has accumulated Part S/N (CKLBFJ9008) is recorded in SB 72- PW4000-100'' Turbofan N-2012- FRONT HUBS - more than 17,000 CSN on 28-Sep-2012, remove the 821 so limit can stay at 20,000. 2012-16-01 N Engines. 16-01 (B) INSPECTION / HPT Stage1 Front Hub from service before AD Closed See AD for details of REMOVAL FROM accumulating an additional 1,000 Models and ESNs. SERVICE Cycles-in-Service (CIS) or at the next piece-part exposure above 18,000 CSN, whichever occurs first. (2) For HPT Stage1 Front Hubs listed in paragraphs (c)(2) and (c)(3) of this AD, do the following: (i) If the HPT Stage1 Front Hub has accumulated 12,700 or fewer CSN on 28-Sep-2012, remove the HPT Stage1 Front Hub from service before accumulating 13,700 CSN. P.T.O

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

(ii) If the HPT Stage1 Front Hub has accumulated more than 12,700 CSN on 28-Sep-2012, remove the HPT Stage1 Front Hub from service before accumulating an additional 1,000 CIS or at the next piece-part exposure above 13,700 CSN, whichever occurs first. g) Installation Prohibition After 28-Sep-2012, do not install into any engine any ENGINE - CERTAIN HPT Stage1 Front Hubs listed in paragraph (c)(1) of PW4000-94'' and HPT STAGE 1 Part S/N (CKLBFJ9008) is recorded in SB 72- N-2012- this AD that are at piece-part exposure and exceed PW4000-100'' Turbofan 2012-16-01 FRONT HUBS - 821 so limit can stay at 20,000. 16-01 (B) N 18,000 CSN, or any Engines. {Cont’d} INSPECTION / AD Closed {Cont’d} HPT Stage1 Front Hubs listed in paragraphs (c)(2) See AD for details of REMOVAL FROM and (c)(3) of this AD that are at piece-part exposure Models and ESNs. SERVICE and exceed 13,700 CSN.

(k) Material Incorporated by Reference (i) P&W ASB PW4ENG A72-821, dated July 6, 2012. (ii) P&W ASB No. PW4G-100-A72-246, dated June 28, 2012.

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

Comply with this AD the next time the HPT module is removed from the engine, unless already done. (1) Remove the Stage 1 HPT Seal Support, P/N 55K601 (contained within assembly P/N 55K602-01) or P/N 50K532 (contained within assembly P/N 50K530-01), from service and replace it with a serviceable Stage 1 HPT Seal Support. (2) Remove the 1st Stage HPT Air Seal Ring, P/N PW4000-94'' and ENGINE - STAGE 1 50L664 from the engine for an FPI or ECI inspection AD Open 2012-18-03 N PW4000-100'' Turbofan HPT SEAL SUPPORT for cracks. If found cracked, remove the 1st Stage At next HPT module removal. Engines. HPT Air Seal Ring from service Relevant Service Information The following Service Information describe procedures for replacing the 1st stage HPT Seal Support, P/N 55K601, or P/N 50K532, with a redesigned 1st Stage HPT Seal Support, /N 50K153. SB PW4000-72- 721 SB PW4G-100-72-166 PW4052, PW4056, PW4060, PW4062, PW4062A, PW4074, ENGINE - HP PW4077, PW4077D, 2012-18-17 N COMPRESSOR AD Open PW4084D, PW4090,

DRUM ROTOR DISK See AD Compliance & AD 2012-18-17 (AMOC) To perform at next de-blade of 13th, 14th, or PW4090-3, PW4152, 2012-18-17 ASSEMBLY - 15th stage HP Compressor Drum PW4156A, PW4158, (AMOC) N INSPECTIONS PW4164, PW4168, PW4168A, PW4460, and PW4462 turbofan engines

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

1. Perform the Compliance Requirements IAW paragraph (e) of the AD.

3RD AND 4TH STAGE 2. Installation Prohibition LPT VANES - PW4000-94'' and After 07-Nov-2012 (the effective date of this AD), do AD Open 2012-14-09 N INSPECTION / PW4000-100'' Turbofan not install or re-install into any engine any LPT 4th At next Piece part opportunity REMOVAL FROM Engines stage vanes with a P/N listed in Table 1 to SERVICE paragraph (e) of this AD that are at piece-part exposure and have had more than one strip and recoat repair. Comply with this AD within the compliance times specified, unless already done. 3rd Stage LPT Duct Segments Removal from Service At the next piece-part exposure after19 Dec-2012 (the effective date of this AD), remove from service 3rd Stage LPT Duct Segments, P/Ns 50N095; CERTAIN STAGE 3 50N095-001; 50N235; 50N235-001; 50N494-01; AD Open PW4000-94'' LP TURBINE DUCT 50N494-001; 50N495-01; and 50N495-001. Next piece part exposure Turbofan Engines 2012-22-16 N SEGMENTS - (SB 72-488 ‘’PART-A’’ found previously REMOVAL FROM Installation Prohibition Fitted With The performed on 21st May 2011.) SERVICE After 19 Dec-2012, do not install into any engine any Affected Parts 3rd Stage LPT Duct Segment, P/N 50N095; 50N095-001; 50N235; 50N235-001; 50N494-01; 50N494-001; 50N495-01; or 50N495-001, that is at piece-part exposure.

Relevant Service Information SB PW4000-72-488 R3

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

TIME LIMITS AND MAINTENANCE CHECKS - A310, A300-600 2013- CERTIFICATION and A300-600ST N See AD Compliance Not Applicable due to aircraft type 0072 MAINTENANCE aeroplanes, All REQUIREMENTS - MSNs ALS PART 3 - AMENDMENT This AD was prompted by reports of latently failed fuel shutoff valves discovered during fuel filter replacement. We are issuing this AD to detect and correct latent failures of the fuel shutoff valve to the engine and auxiliary power unit (APU), which could result in the inability to shut off fuel to the engine and APU and, in case of certain fires, an uncontrollable fire that could lead to structural This AD applies to Reports of Latently failure. all The Boeing Failed Fuel Shutoff FAA AD Company Model D Valves Discovered Within 30 days after the effective date of this AD, Superseded by FAA AD 2015-21-09 2015-19-02 During Fuel Filter revise the maintenance or inspection program, 767-200, -300, - Replacement as applicable, to add airworthiness limitation 300F, and -400ER numbers 28-AWL-ENG, 28-AWL-MOV, and 28- series airplanes AWLAPU, by incorporating the information specified in the AD. The initial compliance time for accomplishing the actions specified is within 10 days after accomplishing the maintenance or inspection program revision as detailed above.

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

All PW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, Comply with this AD within the compliance times PW4062, PW4062A, specified, unless already done. For the affected engines: PW4152, PW4156, Engine - Removal from (1) At each LPT overhaul after the effective date of this PW4156A, PW4158, FAA AD Service of LP Turbine AD, remove from service the LPT 4th stage IAS, P/N AD Open N PW4160, PW4460, 2015-22-03 4th Stage Inner Air Seal 51N038. At next LPT overhaul PW4462, and PW4650 (IAS), PN 51N038 (2) At each engine shop visit after the effective date of this turbofan engines including AD, remove from service the LPT 4th stage IAS, P/N models with a ''-3'' suffix 51N038, if it has more than 10,900 cycles since new. with an LPT 4th stage IAS, P/N 51N038, installed are affected by this AD.

This AD was prompted by reports of latently failed fuel Reports of Latently shutoff valves discovered during fuel filter replacement. This AD applies to all The Failed Fuel Shutoff We are issuing this AD to detect and correct latent failures FAA AD Boeing Company Model N Valves Discovered of the fuel shutoff valve to the engine and auxiliary power Not Applicable due to aircraft type 2015-21-09 767-200, -300, -300F, and During Fuel Filter unit (APU), which could result in the inability to shut off -400ER series airplanes Replacement fuel to the engine and APU and, in case of certain fires, an uncontrollable fire that could lead to structural failure.

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PW4000-94” Master Airworthiness Directive List

DGAC CN FAA AD R TITLE METHOD OF COMPLIANCE / REMARKS LAST NEXT REMARKS D DATE HRS CYC DATE HRS CYC

(1) After 01/06/2016, whenever the HPT or LPT is removed from the engine, perform an ultrasonic inspection Effective 1st June 2016 (USI) of the HPC 10th stage disk for cracks. If the HPC Applicable to PW4050, 10th stage disk fails the USI, perform a follow-on eddy PW4052, PW4056, current inspection (ECI) or remove the disk from service PW4060, PW4060A, Initial/Repetitive and replace with a part eligible for installation. PW4060C, PW4062, FAA AD Ultrasonic Inspection (2) After the effective date of this AD, whenever the HPC AD Open N PW4062A, PW4152, 2016-08-09 of the HPC Stage 10 front drum rotor disk assembly is removed from the At next HPT/ LPT removal PW4156, PW4156A, Disk engine, perform an ECI of the HPC 10th stage disk for PW4158, PW4160, cracks. Remove from service any HPC 10th stage disk PW4460, PW4462, and that fails inspection and replace with a part eligible for PW4650 with affected installation. parts installed. A USI as required by (1) is not required if an ECI is performed.

END OF AD STATUS CLICK HERE TO SEE ACTIVE EASA PADs & FAA NPRMs

Template Issue 43 Page 47 of 47 Template Issue Date: 29/04/2016

.. I. Approving National Aviation 2. 3. Form Tracking Number Authority/Country AUTHORISED RELEASE CERTIFICATE FANrC/A2011/237 C€ F AA/UNl'rED STATES FAA Form 8130-3, AIRWORTHINESS APPROVAL TAG 4. Organization Name and Address: 5. Work Order/Contract/Invoice Number: SALES ORDER NO: 51 Calshot Road Singapore 509927 (E33Y1660) EAGLE SERVICES ASIA E724307-04 6. Item: 7. Description: 8. Part Number: 9 .. Eligibility: * 10. Quantity: II. SeriallBatch Number: 12. StatusIWork 01 PRATT & WHITNEY ENGINE PW4056 (-3) NA 1 P724307CN REPAIRED

13. Remari

ENGINE REPAIRED, TESTED AND PRESERVED FOR A PERIOD OF MORE THAN 60 DAYS AS PER METHOD II lAW. PRATT & WHITNEY ENGINE MANUAL PN: 50A605 REV 95 DATED MAY 01, 2011.

ALL WORK CONDUCTED lAW. PW4000-94 INCH MAINTENANCE PLANNING GUIDE PIN: 51A772 REV DATE: 03/31/11.

REFER TO SWA FOR INFORMATION ON LIFE LIMITED PART, SB, lEN AND AD COMPLIANCE.

TSN: 75441: HOURS CSN: 12181CYCLES

NOTE: ALL ITEMS LISTED IN GEN/10 MUST BE ACCOMPLISHED PRIOR TO INSTALLATION I OPERATION.

),9. I2J 14 CFR 43.9 Return to Service D Other regulation specified in B1ocl< 13 "',,"~ .,"",. "0""," .,,"'''''' _"".""M""""~ D Approved design data and are in a condition for safe condition , Certifies that unless otherwise specified in Block 13, the worl< identified in Block 12 and described in Block 13 was accomplished in accordance with Title 14, Code of Federal Regulations, part 43 and in D Non~approved design data specified in Block 13. . respect to that work, the items are approved for return to service.

IS. Authorized Signatures: ~proval/Authorization No.: 20. Authorized Signature: /7 21. Approval/Certificate No.: ~~ E33Y1660 18. Date (m/d/y) 22. Name (Typed o~ Printed): 23. Date (m/d/y): ------.' I~ ONG MENG SOON MAY 28,2011 UserlInstaller Responsibilities

It is important to :"J:nderstand that the existence of this document alone does not automatically constitute authority tQ install the part/component/assembly. \Vhere the user/installer works in accordance with the national regulations of an airworthiness authority different than the airworthiness authority of the country specified in Block 1, it is essential that the user/installer ensures that his/her airworthiness authority accepts parts/component/assemblies from the airworthiness authority of the country specified in Block 1.

Statements in Blocks 14 and 19 do not constitute installation certification. In all cases the aircraft maintenance records must contain an installation certification issued in accordance with the national regulations by the user/installer before the aircraft may be flown.

J ,..r.n~' nr n,", ,ro .. , •• \ .... .-. • ,... ",n.., ...... ,~ , .... "' ...... , - .. ------.~ -_. . - ...... lS 1. Approving Competent Authority/Country 2. AUTHORISED RELEASE CERTIFICATE 3, Form Tracking Number EASAffC/A2011n8 EASA EASA FORM 1 4. Organisation Name and Address: 5. Work Order/Contract/Invoice SALES ORDER NO: EAGLE SERVICES ASIA 51 Calshot Road Singapore 509927 E724307-04 6. Item 7. Description 8. Part No. 9. Quantity 10. Serial No. 11. StatusIWork PRATT & WHITNEY ENGINE PW4056 (-3) P724307CN 01 , 1 REPAIRED - .

12. Remarks ENGINE REPAIRED, TESTED AND PRESERVED FOR A PERIOD OF MORE THAN 60 DAYS AS PER METHOD lll.A.W. PRATT & WHITNEY ENGINE MANUAL PN: 50A605 REV 95 DATED MAY 01, 2011.

ALL WORK CONDUCTED lAW. PW4000-94 INCH MAINTENANCE PLANNING GUIDE PIN: 51A772 REV DATE: 03/31/11.

REFER TO SWA FOR INFORMATION ON LIFE LIMITED PART, SB, lEN AND AD COMPLIANCE.

TSN: 75448 HOURS CSN: 12181CYCLES

NOTE: ALL ITEMS LISTED IN GENI10 MUST BE ACCOMPLISHED PRIOR TO INSTALLATION I OPERATION.

'''o.~"~ •• '".~".'"~.~. __._"._~ 14a. t8:l Part-14S.A.SO Release to Service o Other regulation specified in block 12 D approved design data and are in a condition for safe condition Certifies that unless othelWise specified in block 12,' the work identified in block 11 and described in block 12 was accomplished in accordance with Part 145 and in respect to that work, the items D non-approved design data specified in block 12. are considered ready for release to service.

13b. Authorised Signature ~pproval/Authorisation Number 14b. Authorised Signatu~~ 14c. Certificate/Approval Ref. No. ~ . -ff':!t /7'!P EASA.145.0050 13e. Date (dd mmm yyyy) 14d. Name 14e. Date (dd mmm yyyy) ~ ONG MENG SOON 28 MAY 2011 USER/INSTALLER RESPONSIBILITIES This certificate does not automatically constitute authority to install the item(s). .COpy OF ORIGINAL Where the user/installer performs work in accordance with the regulations of an airworthiness authQrity different from the airworthiness authority specified in block 1, it is essential that the userlinstaller ensures that his/her airworthiness authority accepts items from the airworthiness authority specified in block 1. (NOTTO BE USED AS AN ORIGINAL) Statements in block 13a and 14a do not constitute installation certification. In all cases the aircraft maintenance records must contain an installation certification issued in accordance with the national regulations by the user/installer before the aircraft may be flown.

EASA Form 1 - MF/145 Issue 2 CONSIGNEE'S COPY ESAQ 002 R6 (03/2010) FORM eRS 100-0 SUMMARY OF WORK ACCOMPLISHED

Model: PW4056 (-3) TSN: 75448 SID: E724307 -04 Customer Order No: R2577111 EJ.\GLE SER'ViCES A.S/A ESN: P724307CN CSN: 12181 Customer: MARTINAIR

1) HOURS/CYCLES REMAINING FOR LIFE LIMITED PART OR MODULE WITH LOWEST REMAINING LIFE:

3586 CYCLES REMAINING - SEAL-AIR, LPT, 4 STAGE

2) FPIIAW ASB 72-753 NOT APPLICABLE TO DIFFUSER CASE PIN: 50J779-004,

The above engine has been released after Inspection, Repair, Modification, Module Replacement and Testing in accordance with the specifications and recommendations of the Manufacturer and other approved procedures and is passed as serviceable.

Detailed records of work carried out are maintained by the Technical Records Section.

This document contains: - 1. Summary of Work Accomplished. 2. Engine Life Limited Parts. 3. Modules Status. 4. Engine Components Removed and Installed. 5. Fan Blades Moment Weight Record. 6. Shop Out Modification Status. 7. lEN Status. 8. Airworthiness Directives Compliance. 9. Recordable Tracked Parts. 10. Engine Test Report. 11. Engine FAA Form 8130-3. 12. Engine EASA Form One.

Verified By: /\~~ Approval Ref: AWI/166 Date: 28-May-2011

Date of Revision: - {REV NO: O}

Page 1 of 1 FORM eRS 100-1;

SUMMARY OF WORK ACCOMPLISHED

Model: PW4056 (-3) TSN: 75448 S/O: E724307-04 Customer Order No: R2577111 Eagle Services ASIA ESN: P724307CN CSN: 12181 Customer: MARTINAIR

Position: No.2 Ex-Aircraft Regn: D-ACGC Date Removed: 16 Feb 2011 Removed At: UNK Time/Cycles Since Last Visit: 20329/3684 Date of Shop Visit: 07 Mar2011 Reason for Removal: STAGE 2 NGV DISTRESS

THE ENGINE WAS INSPECTED, REPAIRED, REPLACED, MODIFIED AND TESTED IN ACCORDANCE WITH PRATI & WHITNEY ENGINE MANUAL PIN: 50A605 REVISION 95 DATED MAY 01,2011. ALL WORK CONDUCTED lAW PW4000-94 INCH MAINTENANCE PLANNING GUIDE PIN: 51A772 REV DATE: 03/31/11.

1. THE FOLLOWING MODULES AND ASSEMBLY WERE RE-INSTALLED AFTER HEAVY MAINTENANCE:- a) DIFFUSER CASE b) TURBINE NOZZLE ASSY c) HIGH PRESSURE TURBINE 2. THE FOLLOWING MODULES WERE RE-INSTALLED AFTER CHECK AND REPAIR:- a) LOW PRESSURE COMPRESSOR b) HIGH PRESSURE COMPRESSOR c) LOW PRESSURE TURBINE d) MAIN GEARBOX 3. THE FOLLOWING MODULES WERE MODULE LEVEL INSPECTION:- a) LPCILPT COUPLING b) FAN CASE c) INTERMEDIATE CASE d) ANGLE GEARBOX 4. THE TURBINE EXHAUST CASE WAS REPLACED WITH HEAVY MAINTENANCE. 5. THE BELL-CRANK ASSY WAS VISUAL INSPECTION. 6. MAIN BEARINGS :- a) #1 AND #3 WERE RE-INSTALLED AFTER OVERHAUL. b) #1 AND #1.5 WERE VISUAL INSPECTION. c) #4 WAS REPLACED WITH OVERHAUL. 7. THE FORWARD MOUNT ASSEMBLY WERE RE-INSTALLED AFTER OVERHAUL.

Detailed records of work carried out are maintained by the Technical Records Section.

Verified By: Approval Ref: AWI/166 Date of Original Issue: 28-May-2011 f& ~ Date of Revision:

R501 DEC 2005 LEE THIAM YEW QUALITY ENGINEER

Engine PW4056-3 P724307

ATA Description Partno Serialno Description Inst-Date TSN CSN 24 ELECTRICAL POWER 11698-000 0903 COOLER, AIR OIL [IDG] 53862:19 6706 Interval TSR To go 12000/H 2622:19 Soft-Limit 745329B 60955 INTEGRATED DRIVE GENERATOR UNKNOWN UNKNOWN 798850-2 F53156 VALVE IDG A/O HEAT EXCH UNKNOWN UNKNOWN Interval TSR To go 3000/C 3'491 Soft-Limit 7000/H 9622:19 Soft-Limit 4000/C 4'491 Soft-Limit 14000/H 16622:19 Soft-Limit 12000/H 2622:19 Soft-Limit 29 HYDRAULIC POWER 4205401 42054012497 ENGINE DRIVEN PUMP (PV3-240-2G) UNKNOWN UNKNOWN 36 PNEUMATICS 773289-16 9615039 CONTROLLER HIGH PRESSURE UNKNOWN UNKNOWN 792755-16 910577 VALVE CONTR,PRESS REGULAT UNKNOWN UNKNOWN Interval TSR To go 9000/H 11622:19 0 802170-10 9908029 HPSOV/PRV UNKNOWN UNKNOWN Interval TSR To go 9000/H 2622:19 6377:41:00 802170-9 901157 HPSOV/PRV UNKNOWN UNKNOWN Interval TSR To go 9000/H 2622:19 6377:41:00 808556-1 960929 VALVE, CHECK - 8TH STAGE AIR UNKNOWN UNKNOWN Interval TSR To go 3000/C 491 Soft-Limit 10000/H 2622:19 Soft-Limit 1/C 491 Soft-Limit 1/H 2622:19 Soft-Limit 71 POWER PLANT 310T4020-10 156F4 MOUNT, ASSY FWD - ENGINE PW40XX UNKNOWN UNKNOWN 310U4020-6 052 MOUNT ASSY-AFT B744-PW4K UNKNOWN UNKNOWN Interval TSR To go 10000/H 2622:19 Soft-Limit 72 ENGINE 56A621 CBDUB05433 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05436 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05439 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05442 FAN BLADE (ASSY) UNKNOWN UNKNOWN

03-01-17 P724307 Component-List 1 of 6 Engine PW4056-3 P724307

ATA Description Partno Serialno Description Inst-Date TSN CSN 56A621 CBDUB05451 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05460 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05465 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05496 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05530 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05744 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05769 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05782 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05784 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05790 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05798 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05799 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05802 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05805 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05807 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05808 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05810 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05812 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05813 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05815 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05816 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05819 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05822 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05824 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUB05830 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUBY0519 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUBY0550 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUBY0572 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUBY0596 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUBY0599 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUBY0610 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUBY0629 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUBY0630 FAN BLADE (ASSY) UNKNOWN UNKNOWN 56A621 CBDUBY0632 FAN BLADE (ASSY) UNKNOWN UNKNOWN PW4KFANSET 724307 PW4000 FAN SET 84461:19 13973 73 ENGINE FUEL AND CONTROL 23504-001 643449 PROBE THERMOCOUPLE TT3 UNKNOWN UNKNOWN

03-01-17 P724307 Component-List 2 of 6 Engine PW4056-3 P724307

ATA Description Partno Serialno Description Inst-Date TSN CSN 418-06124 894532 TRANSMITTER, PRESSURE - FUEL /OIL UNKNOWN UNKNOWN 42D395 CSGCB30393 SWITCH FUEL FILTER DIFF PR UNKNOWN UNKNOWN Interval TSR To go 1080/ID 345 735 12000/H 14622:19 0 430070-2 CNKCAH0294 STATOR, EEC ALTERNATOR UNKNOWN UNKNOWN Interval TSR To go 16000/H 18622:19 Soft-Limit 51A020 CCWKAT2876 N1 SPEED PROBE/TT2.5 UNKNOWN UNKNOWN 54D336 VM1079 PLUG, ENGINE PROGRAM - PW4056 (-3) UNKNOWN UNKNOWN 788366-2 F5180 VALVE, FUEL DISTRIBUTION (GTA40-1) UNKNOWN UNKNOWN Interval TSR To go 16000/H 18622:19 Soft-Limit 791100-4-108 4000-0587 ELECTRONIC ENGINE CONTROL 8465:40 1557 801000-4 F33253 UNIT, FUEL METERING - PW4000 UNKNOWN UNKNOWN Interval TSR To go 12000/H 10960:19 Soft-Limit 813520-1 F27124 FUEL BYPASS VALVE UNKNOWN UNKNOWN Interval TSR To go 12000/H 14622:19 Soft-Limit 825501-12 4539 FUEL PUMP 11879:19 1757 Interval TSR To go 14000/H 11879:19 Soft-Limit 9-217-33 3387 FLOW-METER FUEL UNKNOWN UNKNOWN Interval TSR To go 10000/H 2622:19 Soft-Limit HAC19822 129817 THERMOCOUPLE - FUEL/OIL TEMP UNKNOWN UNKNOWN HAD22501 DK0282 THERMOCOUPLE - FUEL TEMP UNKNOWN UNKNOWN 74 IGNITION 10-609660-9 98407396 CABLE, EXCITER BOX TO PLUG UNKNOWN UNKNOWN 10-609660-9 CSGCBH4578 CABLE, EXCITER BOX TO PLUG UNKNOWN UNKNOWN 10-621630-1 90320983 EXCITER BOX UNKNOWN UNKNOWN 10-621630-1 94174384 EXCITER BOX UNKNOWN UNKNOWN 75 AIR 04P23-12 1713 SOLENOID 2.9 BLEED UNKNOWN UNKNOWN Interval TSR To go 12000/H 14622:19 Soft-Limit 07P95-7 2417 VALVE, PNEUM. RELAY (2.9) UNKNOWN UNKNOWN

03-01-17 P724307 Component-List 3 of 6 Engine PW4056-3 P724307

ATA Description Partno Serialno Description Inst-Date TSN CSN Interval TSR To go 12000/H 14622:19 Soft-Limit 5830202-106 1169 VALVE, LPT CLNG - HIGH FLOW UNKNOWN UNKNOWN Interval TSR To go 10000/H 12622:19 Soft-Limit 5830203-104 2160 VALVE, HPTCC - CASE COOLING UNKNOWN UNKNOWN Interval TSR To go 10000/H 12622:19 Soft-Limit 814890-2 F41804 ACTUATOR, 2.5 BLEED UNKNOWN UNKNOWN Interval TSR To go 2000/C 1'792 Soft-Limit 12000/H 9013:19 Soft-Limit 819802-1 F19423 ACTUATOR, STATOR VANE W/ SCRAPER UNKNOWN UNKNOWN Interval TSR To go 12000/H 2622:19 Soft-Limit HAC19460 770564 2.9 VALVE THERMOCOUPLE UNKNOWN UNKNOWN HAC19460 AG2220 2.9 VALVE THERMOCOUPLE 75695:19 UNKNOWN 77 ENGINE INDICATING S332T304-1 AD17076 ACCELEROMETER UNKNOWN UNKNOWN 79 OIL 15622-000 1575 COOLER, AIR OIL (ENGINE) UNKNOWN UNKNOWN Interval TSR To go 12000/H 14622:19 Soft-Limit 21SN04-415 CSGCA92550 SWITCH, OIL DIFFERENTIAL PRESSURE UNKNOWN UNKNOWN 3830032-105 2042 FUEL/OIL COOL BYPASS VALVE UNKNOWN UNKNOWN Interval TSR To go 16000/H 18622:19 Soft-Limit 418-01124 8945092 XMITTER PRESSURE OIL UNKNOWN UNKNOWN 47111-1204 TR8338 FUEL/OIL COOLER UNKNOWN UNKNOWN Interval TSR To go 3000/C 3'491 Soft-Limit 10000/H 12622:19 Soft-Limit 5008437 0841 PUMP-OIL LUBRICATION AND SCAVENGE UNKNOWN UNKNOWN Interval TSR To go 3000/C 3'491 Soft-Limit 10000/H 12622:19 Soft-Limit 77-109-13 1063 TRANSMITTER, OIL QTY UNKNOWN UNKNOWN 788399-5 F30737 AIR/OIL HEAT EXCHANGER VALVE 81875:19 UNKNOWN

03-01-17 P724307 Component-List 5 of 6 Engine PW4056-3 P724307

ATA Description Partno Serialno Description Inst-Date TSN CSN Interval TSR To go 2000/C 2'491 Soft-Limit 12000/H 14622:19 Soft-Limit 10P18-10 1009 VALVE, NO3 BRG BREATHER 2POS UNKNOWN UNKNOWN 1108V0100-2 3569 SOLENOID HPC COOL/TVBC UNKNOWN UNKNOWN Interval TSR To go 12000/H 14622:19 Soft-Limit 1109V0300-2 3035 SOLENOID IDG OVRD/HPC COOL UNKNOWN UNKNOWN Interval TSR To go 4000/C 4'491 Soft-Limit 14000/H 16622:19 Soft-Limit 12000/H 14622:19 Soft-Limit 1110V0500-6 4205C VALVE, TCA SHUT OFF UNKNOWN UNKNOWN Interval TSR To go 16000/H 18622:19 Soft-Limit 1110V0500-6 CSGCBJ6076C VALVE, TCA SHUT OFF UNKNOWN UNKNOWN Interval TSR To go 16000/H 18622:19 Soft-Limit 1115V0700-6 CSGCBN5181 BLEED VALVE 2,9 UNKNOWN UNKNOWN Interval TSR To go 4000/C 4'491 Soft-Limit 12000/H 14622:19 Soft-Limit 1115V0700-9 5352C BLEED VALVE 2,9 UNKNOWN UNKNOWN Interval TSR To go 12000/H 14622:19 Soft-Limit 120837 UNN004279 SWITCH, IDGS AOC OVERRIDE UNKNOWN UNKNOWN Interval TSR To go 12000/H 14622:19 Soft-Limit 1605140-002 2751 CABLE, TCC CONTROL UNKNOWN UNKNOWN Interval TSR To go 10000/H 12622:19 Soft-Limit 20P78-5 1141 VALVE, AIR - TURBINE CLNG/PHASE III UNKNOWN UNKNOWN Interval TSR To go 16000/H 18622:19 Soft-Limit 51A613 CSGCBD3875 COOLER-BRG 3 BUFFER AIR UNKNOWN UNKNOWN 5830201-109 1640A TCC ACTUATOR UNKNOWN UNKNOWN

03-01-17 P724307 Component-List 4 of 6 Engine PW4056-3 P724307

ATA Description Partno Serialno Description Inst-Date TSN CSN Interval TSR To go 4000/C 491 Soft-Limit 14000/H 2622:19 Soft-Limit 6000/H 2622:19 Soft-Limit 12000/H 2622:19 Soft-Limit 8D1494 1206 SWITCH, LOP UNKNOWN UNKNOWN 80 STARTING 3505140-2 241 STARTER 68530:19 UNKNOWN Interval TSR To go 3000/C 491 Soft-Limit 979858-2 550C STARTER VALVE 66361:19 UNKNOWN Interval TSR To go 3000/C 3'491 Soft-Limit

03-01-17 P724307 Component-List 6 of 6 KLM51558 02.Nov.2016 Certified Service Bulletin List 08:37 Page 1/153 For P/N: `PW4056-3` S/N: `P724307` (ENGINE, PH III - BOEING/56KLBS) Selection:

Document-Number Type Rev Compliance A|C Subject Status FAA2010-24-09/PT.F AD - MANDATORY COMP TUBE, BRG#3 OIL SUPPLY - CRACK INSPECTION (ONE TIME VISUAL) AMENDMENT Closed 27.May.2011 39-16528. Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks 27.May.2011 75448:00/H 12'181/C ESA DOCU PerfRev.:'-'

FAA2011-25-09 AD - MANDATORY COMP AIR SEAL, HPT STAGE 1 - NEW (REDUCED) LIFE LIMIT AMENDMENT 39-16885. Part-Requirem.Contr. PT.F-I Reason for this Status AUTO ASSIGNED

FAA2012-14-09-PT.(E AD - MANDATORY COMP VANE, LPT STG.3 & STG.4 - PREVENTION OF FRACTURES BY LPT MAINTENANCE Open (Next Shop Visit) )(1) AMENDMENT 39-17123. Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

FAA2012-14-09-PT.(E AD - MANDATORY COMP VANE, LPT STG.3 & STG.4 - PREVENTION OF FRACTURES BY HPT MAINTENANCE Open (Next Shop Visit) )(2) AMENDMENT 39-17123. Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

FAA2012-18-03.PT(E) AD - MANDATORY COMP RING, SEAL-AIR - INSPECTION FOR CRACKS FAA2012-18-03 Open (2) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

FAA2012-22-16-PT.F AD - MANDATORY COMP DUCT SEGMENT, LPT STAGE 3 - APPLY SEGMENTS WITH INTEGRAL SEAL PLATE Open (Next Shop Visit) AMENDMENT 39-17253. This Document terminates PW4ENG 72-488/SB Rev.3 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status FAA2015-22-03 AD - MANDATORY COMP SEAL, AIR LPT STG.4 - INSTALLATION PROBHIBITION FOR PN 51N038 AMENDMENT Repetitive PT.F.2 39-18307 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Interval(F):0/H or 0/C or 0/D or 0/ID Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks Was due at: No limit PerfRev.:'-' / Return 20.May.2011 75448:00/H 12'181/C Information: Affected PN not installedBased upon last shop visit records check

FAA2016-08-09(E)(1) AD - MANDATORY COMP DISK, HPC STG.10 - ULTRASONIC INSPECTION FOR CRACKS AMENDMENT 39-18485 Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Interval(F):0/H or 0/C or 0/D or 0/ID

FAA2016-08-09(E)(2) AD - MANDATORY COMP DISK, HPC STG.10 - EDDY CURRENT INSPECTION FOR CRACKS AMENDMENT 39-18485 Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Interval(F):0/H or 0/C or 0/D or 0/ID

C4180-G74518 AO - MANDATORY COMP VANE, LPT - FAILURE MITIGATION PROGRAM Open W Perform within an unlimited threshold.

06KC582 EA - MANDATORY COMP SUPPORT, OAS DUCT SEGMENT HPT STG.1 & STG.2 - PLASMA COATING REMOVAL Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status 08KZ021 EA B RECOMMENDED COMP ENGINE, HPC - GAS PATH CLEANING BY ECO POWER (B747) Repetitive This Document SUPERSEDES EOD-COMP-72-0002-R00/EOD Rev.00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document 14'038/C Interval(F):375/C Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks 10.Apr.2015 82790:35/H 13'663/C 3141759, Was due at: 13'680/C PerfRev.:'B'

10KC372 EA - MANDATORY COMP BLADE, HPC STG.13 - DENT IN AREA D INSPECTION OF Not Applicable by Serial Number

10KC552 EA - MANDATORY COMP SUPPORT, INNER COMBUSTOR LINER - FRONT LIP CRACK WELD REPAIR Not Applicable by Serial Number

10KC575 EA - MANDATORY COMP CASE, INTERMEDIATE OUTER WALL - CRACK MONITORING INSPECTION Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY 12KCD19/EA Rev.A

10KC791 EA A MANDATORY COMP BLADE, HPT STG.2 - LEADING EDGE DAMAGE AREA A REPEAT INSPECTION Not Applicable by Serial Number This Document SUPERSEDES 10KC791/EA Rev.-

10KC791 EA - MANDATORY COMP BLADE, HPT STG.2 - LEADING EDGE DAMAGE AREA A REPEAT INSPECTION Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY 10KC791/EA Rev.A

10KC964 EA - MANDATORY COMP HOUSING, MGB - FRETTING DAMAGE CONDITION OF CONTINUE IN SERVICE Not Applicable by Serial Number

10KCB09 EA - MANDATORY COMP HOUSING, MGB - ABRASION DAMAGE REWORK AND ACCEPTANCE OF Not Applicable by Serial Number

10KCC96 EA - MANDATORY COMP BLADE, STG.3 LPT- SULFIDATION LIMITED CONTINUE IN SERVICE Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY 10KCC96/EA Rev.A

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Document-Number Type Rev Compliance A|C Subject Status 11KC108 EA 00 MANDATORY COMP BLADE, STG.3 LPT- SULFIDATION LIMITED CONTINUE IN SERVICE Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY 11KC108/EA Rev.A

11KC241-CHK EA B MANDATORY COMP VANE, STG.3 LPT - INSPECTION FOR CRACKS Not Applicable by Serial Number This Document is terminated with implementation of 11KC241-REM/EA Rev.B

11KC241-REM EA B MANDATORY COMP VANE, STG.3 LPT - REMOVE DUE TO CIS LIMIT Not Applicable by Serial Number This Document terminates 11KC241-CHK/EA Rev.B

11KC807 EA A OPTIONAL COMP PLUGS, BOROSCOPE AP-9 - PORT BLOCKAGE ON WING REPAIR Open This Document SUPERSEDES 11KC807/EA Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

11KCF04 EA - MANDATORY COMP TUBE, PRESSURE [LP46] - REPLACE TUBE MANUF. FROM ALTERNATE MATERIAL Not Applicable by Serial Number

12KCA09 EA - MANDATORY COMP PLUG, CHIP COLLECTOR, REPEAT INSPECTION FOR CHIPS/FLAKES Not Applicable by Serial Number

12KCD19 EA A MANDATORY COMP CASE, INTERMEDIATE OUTER WALL - CRACK INSPECTION CRITERIA Not Applicable by Serial Number This Document SUPERSEDES 10KC575/EA Rev.-

13KC327 EA - MANDATORY COMP RUNNERS, HPC UNISON RING - STG.7 BLOCK MISSING FINAL REPAIR Not Applicable by Serial Number This Document terminates 13KC327-I/EA Rev.-

13KC327-I EA - MANDATORY COMP RUNNERS, HPC UNISON RING - STG.7 BLOCK MISSING FINAL REPAIR Not Applicable by Serial Number This Document is terminated with implementation of 13KC327/EA Rev.-

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Document-Number Type Rev Compliance A|C Subject Status 14KC302 EA - RECOMMENDED COMP VANE, LPT STG.4 - INSPECTION BY BORESCOPE Open (Next Shop Visit) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

14KC325 EA - MANDATORY COMP MGB, BEARINGS - INSPECTION OF MB16, MB17 AND MB18 Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document 30.Aug.2015 Perform initially before(F) 01.Aug.2015

15KC749 EA - MANDATORY COMP VANE, HPT STG.2 - DISTRESS, APPROVAL TO CONTINUE IN SERVICE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document Perform initially within (effective from 84496:02/H 14'004/C Effective Date 05.Oct.2015) () 400/H or 100/C / Interval():400/H or 100/C Reason for this Status As per obtained approval from the OEM

EM09KC599 EA A MANDATORY COMP TURBINE HARDWARE - ENHANCE GUIDLINES FOR CLEANING AND INSPECTION Not Applicable by Serial Number

EOC-COMP-72-00001 EOC 00 MANDATORY COMP LIFE LIMITED ROTATING PARTS (CRITICAL) - ENHANCED INSPECTION OF Open -R00 Perform within an unlimited threshold.

EOC-COMP-72-35001 EOC 00 MANDATORY COMP SURGE, GROUP 3 - MIGITATE RISK BY NEW BUILD STANDARD FOR THE HPC AD Closed 06.Dec.1994 -R00 98-23-08 This Document is terminated with implementation of PW4ENG 72-490/SB Rev.02 Perform within an unlimited threshold.

EOC-COMP-72-52001 EOC 00 MANDATORY COMP HPT ROTATING AIRSEAL (OUTER)- MODI TO IMPROVE DURABILITY Unknown 31.Dec.1971 -R00

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Document-Number Type Rev Compliance A|C Subject Status EOD-COMP-72-0002- EOD 00 RECOMMENDED COMP ENGINE, HPC - GAS PATH CLEANING BY ECO POWER (BOEING) Superseded (Cancelled) R00 This Document has been SUPERSEDED BY 08KZ021/EA Rev.B Reason for this Status Manually deassigned after Document Cancelled or Superseded

EOD-COMP-72-31001 EOD 00 RECOMMENDED COMP LPC 1.6 BLADE - REPETITIVE ECI PER PW4ENG 72-665 Cancelled -R00 This Document is terminated with implementation of PW4ENG 72-651/SB Rev.1 Reason for this Status NOT EFFECTIVE

EOD-COMP-72-31002 EOD 00 MANDATORY COMP FAA2005-25-09 - FRONT COMPRESSOR HUB, INSPECTION OF Open (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

EOD-COMP-72-34001 EOD 00 RECOMMENDED COMP STRUT FAIRING PANELS - INSPECTION FOR LOOSE RIVETS PER PW4ENG 72-767 Not Assigned -R00 This Document SUPERSEDES MTO723152/EOD Rev.-

EOD-COMP-72-34002 EOD 00 RECOMMENDED COMP FAN EXIT LINER PANEL BRACKETS - INSPECTION FOR CRACKS Open (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status EOD-COMP-72-35001 EOD 00 RECOMMENDED COMP HPC STAGE 5 DOVETAIL - INSPECTION FOR CRACKS PER SB PW4ENG 72-772 Not Applicable -R00 This Document is terminated with implementation of PW4ENG 72-786/SB Rev.1 Reason for this Status AUTO ASSIGNED

EOD-COMP-72-35003 EOD 00 MANDATORY COMP HPC 6TH-7TH STG DISK SPACER - CRACK INSPECTION PER SBPW4ENG A72-722 Not Applicable -R00 This Document is terminated with implementation of PW4ENG 72-786/SB Rev.1 Reason for this Status NOT EFFECTIVE

EOD-COMP-72-35004 EOD 00 MANDATORY COMP FAA2005-25-09 - HPC STAGE 5 DISK, INSPECTION OF Open (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

EOD-COMP-72-35005 EOD 00 MANDATORY COMP FAA2005-25-09 - HPC FRONT DRUM ROTOR, INSPECTION OF Open (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

EOD-COMP-72-35006 EOD 00 MANDATORY COMP FAA2005-25-09 - HPC REAR DRUM ROTOR, INSPECTION OF Open (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status EOD-COMP-72-52001 EOD 00 MANDATORY COMP FAA2005-25-09 - TURBINE FRONT HUB ASSY STG.1, INSPECTION OF Repetitive (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks 27.May.2011 75448:00/H 12'181/C ESA DOCU PerfRev.:'00'

EOD-COMP-72-52002 EOD 00 MANDATORY COMP FAA2005-25-09 - TURBINE FRONT HUB ASSY STG.2, INSPECTION OF Repetitive (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks 27.May.2011 75448:00/H 12'181/C ESA DOCU PerfRev.:'00'

EOD-COMP-72-53001 EOD 00 MANDATORY COMP FAA2005-25-09 - STAGE 3 LPT DISK, INSPECTION OF Open (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

EOD-COMP-72-53002 EOD 00 MANDATORY COMP FAA2005-25-09 - STAGE 4 LPT DISK, INSPECTION OF Open (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

EOD-COMP-72-53003 EOD 00 MANDATORY COMP FAA2005-25-09 - STAGE 5 LPT DISK, INSPECTION OF Open (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status EOD-COMP-72-53004 EOD 00 MANDATORY COMP FAA2005-25-09 - STAGE 6 LPT DISK, INSPECTION OF Open (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

EOD-COMP-73-12001 EOD 00 RECOMMENDED COMP PW4ENG 72-663 - HOSE AND TUBE ASSY FM11 - INSPECT FOR LEAKAGE Closed 31.Dec.1971 -R00 This Document is terminated with implementation of PW4ENG 73-179/SB Rev.1 Reason for this Status This document was terminated the 22.Feb.2000 with implementation of the document PW4ENG 73-179/SB/1.

EOD-COMP-75-33001 EOD 00 RECOMMENDED COMP TURBINE COOLING AIR SYSTEM - TESTING OF / PW4ENG 75-101 Open (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

EOD-COMP-75-35001 EOD 00 RECOMMENDED COMP BLEED 2.95 SYSTEM, PERIODIC TESTING - SB PW4ENG 75-122 / PW4ENG 75-129 Open (Next Shop Visit) -R00 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

EOD-COMP-79-21001 EOD 00 RECOMMENDED COMP PW4ENG 72-663 - HOSE AND TUBE ASSY LP01, LP03 - INSPECT FOR LEAKAGE Open (Next Shop Visit) -R00 This Document is terminated with implementation of PW4ENG 72-670/SB Rev.3 This Document is terminated with implementation of PW4ENG 72-746/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status MTO260218 EOD B1 OPTIONAL COMP SB767-26-0080 - ENGINE FIRE & OVERHEAT DETECTOR ELEMENT - SUPPORT CLAMP Not Applicable by Serial Number AND WIRE REPLACEMENT ON ENG4000

NE-09-34 SAI 00 MANDATORY COMP CLEANING, CRITICAL PARTS - PROCESSES MAY NOT ADVERSELY AFFECT PARTS Open (Next Shop Visit) B Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

NE-13-31 SAI - RECOMMENDED COMP COMPARTMENT, BRG#4 - CLEAN OIL SUPPLY & SCAV. SYSTEM FOR COKING Information Only B Reason for this Status AUTO ASSIGNED

NE-15-19 SAI - MANDATORY COMP VANE, LPT STG.4 - INSPECT FOR AND REMOVE NON-CONFORMING VANE CLUSTERS Open B Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

NE-16-01 SAI 1 RECOMMENDED COMP VANE, LPT STG.4 - INTERNAL SULFIDATION INSPECTION RECOMMENDATION Open (Next Shop Visit) B This Document SUPERSEDES NE-16-01/SAIB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Interval(F):0/H or 0/C or 0/D or 0/ID

NE-16-01 SAI - RECOMMENDED COMP VANE, LPT STG.4 - INTERNAL SULFIDATION INSPECTION RECOMMENDATION Superseded (Superseded) B This Document has been SUPERSEDED BY NE-16-01/SAIB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status 2016 SB 31 INFORMATION COMP FUEL, APPROVALS - P&W APPROVED FUELS AND ADDITIVES Information Only This Document SUPERSEDES 2016/SB Rev.30 Reason for this Status AUTO ASSIGNED

2016 SB 30 INFORMATION COMP FUEL, APPROVALS - P&W APPROVED FUELS AND ADDITIVES Superseded (Superseded) This Document SUPERSEDES 2016/SB Rev.29 This Document has been SUPERSEDED BY 2016/SB Rev.31

73-2-COMP SB - MANDATORY COMP HOSE ASSY - RECALL OF, DUE TO FIRE SLEEVE BANDING PROBLEM Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

73-21 SB 2 RECOMMENDED COMP HARNESS, WIRING W1/W2 - MODIFY TO DEACTIVATE THE TRC DISCRETES Not Applicable by Serial Number

747-71-2305 [EBU] SB 2 MANDATORY COMP ENGINE, EBU - CHANGES TO ACCOMMODATE THE RING CASE COMPRESSOR Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

747-75-2024 SB - RECOMMENDED COMP BRACKET, ACCESSORY CLNG TUBE - REPLACE TO PRECLUDE INTERFERENCE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

767-26-0080 SB 3 OPTIONAL COMP FIRE PROTECTION - DETECTION - ENGINE FIRE & OVERHEAT DETECTOR ELEMENT - Not Applicable SUPPORT CLAMP AND WIRE REPLACEMENT This Document SUPERSEDES 767-26-0080/SB Rev.-

767-71-0064 SB - OPTIONAL COMP POWER PLANT (PW4000 ENGINES) - ENGINE DRAINS - ENGINE VENTS DRAINS - DRAIN Not Applicable by Serial Number LINE REVISION

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Document-Number Type Rev Compliance A|C Subject Status 767-71-0065 SB 01 RECOMMENDED COMP HARNESS, WIRE W3504 - REROUTING TO PREVENT CHAFING CONDITION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

767-71-0070 SB - OPTIONAL COMP POWER PLANT - ENGINE DRAINS - FIRE DETECTION WIRING AND SCUPPER DRAIN Open TUBE MODIFICATION TO ACCOMODATE FOR NEW PWA OIL TANK Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

767-71-0075C SB - RECOMMENDED COMP QEC, KIT - CHANGE BRACKETS & TUBING TO ACCOMODATE PW4K PH.III CONFIG Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

767-71-0076 SB - RECOMMENDED COMP HARNESS, CLAMPING POINTS - REVISED CLAMPING DUE TO SB PWENG 72-483 Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

767-71-0077 SB 0 RECOMMENDED COMP ENGINE PW4000 ENGINES - STARTER VALVE SHIELD REPLACEMENT Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

767-71-0080 SB 04 RECOMMENDED COMP HEAT SHIELD, IDG - REPLACEMENT OF AND BRACKET CHANGES Not Applicable by Serial Number

767-71-0087 SB - MANDATORY COMP MOUNT, FWD ENGINE - INSPECTION AND REPLACE END CAP/BOLT AD 99-26-09 Not Applicable by Serial Number

767-73-15 SB - MANDATORY COMP HARNESS, W6 - MOD TO ELIMINATE ERRONEOUS THERMOCOUPLE READINGS Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status 767-75-0011 SB - RECOMMENDED COMP PMA, ROTOR/STATOR - MODIFY CLNG TO ACCOMODATE CHANGE PMA SYSTEM Open DESIGN Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

GTA41-1-75-1 SB - OPTIONAL COMP STATOR VANE ACTUATOR - INCORPORATION OF IMPROVED ELECTRICAL Superseded (Superseded) CONTACTS ON TRANSDUCER AND TORQUE MOTOR This Document has been SUPERSEDED BY GTA41-1-75-4/SB Rev.3

MAN-PW4-1-00 SB - RECOMMENDED COMP BLADE, LPC STG 1 (FAN) - SHROUD AND ROOT LUBRICATION Repetitive (Next Shop Visit) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'-' DOCS

MAN-PW4-1-09 SB 1 RECOMMENDED COMP BRACKET ASSEMBLIES, INTERMEDIATE CASE OUTER LINER- DISTRESS INSPECTION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document 31.Dec.1971 00:00/H 0/C Interval(F):0/H or 0/C or 0/D

MAN-PW4-1-91 SB 6 RECOMMENDED COMP GBX MODULES - MAINTENANCE OF BEARINGS AND CARBON SEALS Repetitive (Next Shop Visit) This Document SUPERSEDES MAN-PW4-1-91/SB Rev.5 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'6' RECORDS

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Document-Number Type Rev Compliance A|C Subject Status MAN-PW4-1-91 SB 7 RECOMMENDED COMP GBX MODULES - MAINTENANCE OF BEARINGS AND CARBON SEALS Information Only Reason for this Status AUTO ASSIGNED

MAN-PW4-1-92 SB 3 RECOMMENDED COMP BLADE, LPC STG 1 (FAN) - SHROUD LUBRICATION TO PRECLUDE LOCK-UPS Taskcard Controlled This Document SUPERSEDES MAN-PW4-1-92/SB Rev.2 Reason for this Status AUTO ASSIGNED

MAN-PW4-1-93 SB 5 RECOMMENDED COMP ENGINE, ON-WING - INDEX OF REPETITIVE MAINTENANCE TASKS Superseded (Superseded) This Document SUPERSEDES MAN-PW4-1-93/SB Rev.4 This Document has been SUPERSEDED BY MAN-PW4-1-93/SB Rev.6 Reason for this Status AUTO ASSIGNED

MAN-PW4-1-93 SB 6 RECOMMENDED COMP ENGINE, ON-WING - INDEX OF REPETITIVE MAINTENANCE TASKS Information Only This Document SUPERSEDES MAN-PW4-1-93/SB Rev.5 Reason for this Status AUTO ASSIGNED

MAN-PW4-1-97 SB 2 RECOMMENDED COMP ELEMENT, OIL FILTER - DUAL STAGE 65 MICRON CHANGE RECOMMENDATION Open (Next Shop Visit) This Document SUPERSEDES MAN-PW4-1-97/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

MAN-PW4-10-91 SB 3 RECOMMENDED COMP ENGINE - DRAINLINE COKING AND BLOCKAGE, INSPECTION FOR Rejected by Operator Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status MAN-PW4-2-95 SB 1 RECOMMENDED COMP ENGINE - GUIDELINES TO REDUCE VIBRATION LEVELS Information Only This Document SUPERSEDES MAN-PW4-2-95/SB Rev.- This Document SUPERSEDES MAN-PW4-2-95/SB Rev.0 Reason for this Status AUTO ASSIGNED

MAN-PW4-2-96 SB 2 RECOMMENDED COMP FILTER, PS3 - MAINTENANCE MANAGEMENT Taskcard Controlled This Document SUPERSEDES MAN-PW4-2-96/SB Rev.1 Reason for this Status AUTO ASSIGNED

MAN-PW4-3-96 SB - RECOMMENDED COMP MGB MODULE - CARBON SEAL MAINTENANCE RECOMMENDATIONS Repetitive (Next Shop Visit) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Interval(F):0/H or 0/C or 0/D or 0/ID Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'-' DOCS

MAN-PW4000-8-91 SB 1 RECOMMENDED COMP MODULE, TURBINE EXHAUST CASE - OFF WING MAINTENANCE MANAGEMENT Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 24-004 SB - RECOMMENDED COMP VALVE, AIR-OIL HX (IDGS) - RELOCATED DRAIN TO AVOID TRAPPED FUEL Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 79-49/SB Rev.3

PW4ENG 24-005 SB 1 RECOMMENDED COMP VALVE, IDGS COOLING - CHANGE TO ALLOW COMMONALITY FOR ALL MODELS Information Only Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 24-006 SB 1 RECOMMENDED COMP IDGS, COOLING SYSTEM - STANDARDIZATION OF BOLTS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 24-007 SB 2 RECOMMENDED COMP TUBE, ASSY CP09/CR11 - REPLACE TO AVOID FRACTURING DUE RESONANCE Open This Document SUPERSEDES PW4ENG 24-007/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 24-008 SB 2 RECOMMENDED COMP TUBE, ASSY CP09/CR11 - NEW CLAMP BOLTS DUE TO INSTAL. INTERFERENCE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 24-009 SB 1 RECOMMENDED COMP TUBE, ASSY CP09/CR11 - REPLACE TO AVOID INTERFERENCE AND EASY INSTALL Open This Document SUPERSEDES PW4ENG 24-009/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 24-010 SB - RECOMMENDED COMP TUBE, ASSY CR11 - REPLACE TO CORRECT POSB PW4MD11 24-9 HARDWARE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 24-012 SB - OPTIONAL COMP COOLER, AIR OIL (IDG) - IMPROVED EXTERNAL CORROSION PROTECTION Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 72-106 SB 6 RECOMMENDED COMP BLADE, HPT STAGE 2 - RECALL BLADES WITH THIN WALL TO PRECLUDE FRACTURE Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-107 SB 5 RECOMMENDED COMP SEGMENT, FAN EXIT LINER - SUBSTITUDE SCREWS BY HEX HEAD BOLTS Closed 20.Jan.1991 This Document SUPERSEDES PW4ENG 72-107/SB Rev.4 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks DELIVERY 20.Jan.1991 PerfRev.:'5' DOCS

PW4ENG 72-113 SB 1 RECOMMENDED COMP TUBE, FUEL SYSTEM - IMPROVED CLAMPING Not Applicable by Serial Number

PW4ENG 72-118 SB 2 RECOMMENDED COMP BRACKETS, ENGINE - REPLACE TO SUPPORT AIRFRAMERS HARDWARE Not Applicable by Serial Number

PW4ENG 72-127 SB - RECOMMENDED COMP TUBE, BRG#3 BREATHER - INCREASE ORIFICE DIA / REDUCE COMPARTMENT PRESS Not Applicable by Serial Number

PW4ENG 72-131 SB 3 RECOMMENDED COMP GEARBOX, ANGLE OIL NOZZLES - IMPROVED SCAVENGING AND COOLING Not Applicable by Serial Number

PW4ENG 72-134 SB 5 RECOMMENDED COMP TUBES, SENSING (AS3, AS33) - REROUTING TO ELIMINATE INTERFERENCE Not Applicable by Serial Number

PW4ENG 72-140 SB - RECOMMENDED COMP PLATE, IDENTIFICATION - RELOCATE FROM OIL TANK TO C-FLANGE Not Applicable by Serial Number

PW4ENG 72-150 SB 3 RECOMMENDED COMP CASE, HPT - SHORTER BOLTS AT FLANGES M AND N IN IMPROVE CLEARANCES Not Applicable by Serial Number

PW4ENG 72-153 SB 2 RECOMMENDED COMP ENGINE - STATOR ASSEMBLY, COMPRESSOR LPC 4TH STAGE - REPLACEMENT OF Not Applicable by Serial Number

PW4ENG 72-157 SB 1 RECOMMENDED COMP ENGINE - CASE & VANE ASSEMBLY,TURBINE - MODIF OF TO INCORPORATE A SEC Not Applicable by Serial Number OND STAGE TURBINE BORESCOPE PORT

PW4ENG 72-161 SB 4 RECOMMENDED COMP FAIRING, BIFURCATION FAN EXIT -ACCESS PANEL TO IMPROVE MAINTAINABILITY Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY PW4ENG 72-370/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-382/SB Rev.3

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-166 SB 1 OPTIONAL COMP CONVERSION, MODEL - FROM BOEING 56K THRUST TO BOEING 52K THRUST Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-180 SB 1 RECOMMENDED COMP BOLTS, P-FLANGE - REDUCTION OF DIVERSITY IN USED BOLTS Not Applicable by Serial Number

PW4ENG 72-186 SB 4 RECOMMENDED COMP SEAL, MGB DRIVE - REMOVE FROM SERVICE WEAK UNITS TO PRECLUDE IFSD Not Applicable by Serial Number

PW4ENG 72-191 SB - RECOMMENDED COMP ENGINE, BRACKETS AND TUBES - COMMONALITY BTWN SCU AND NON-SCU CONFIG Not Applicable by Serial Number

PW4ENG 72-198 SB 1 RECOMMENDED COMP MOUNT, AFT - CLEVIS BOSS BUSHING MOD TO IMPROVE CLEARANCE Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-198/SB Rev.-

PW4ENG 72-204 SB 3 RECOMMENDED COMP SUPPORT, BRG#2 SEAL - INTRODUCTION OF BOLTED SUPPORT ASSY Not Applicable by Serial Number

PW4ENG 72-206 SB 4 RECOMMENDED COMP BEARING, PMA - MODIFY HOUSING TO INCREASE BEARING LIFE Not Applicable by Serial Number

PW4ENG 72-207 SB 4 RECOMMENDED COMP TUBE, BRG#3 PRESS & BREATHER - INSPECTION OF WELDS CONDITION Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 72-213/SB Rev.2

PW4ENG 72-208 SB 1 RECOMMENDED COMP BEARING, MGB (MB-18) - INSTALLATION GUIDE TO PRECLUDE INSTALL ERRORS Not Applicable by Serial Number

PW4ENG 72-211 SB 2 RECOMMENDED COMP TUBE, BRG#3 PRESS & TRIM & FUEL PRESS - NEW ATTACHING HARDWARE Not Applicable by Serial Number This Document terminates PW4ENG 79-27/SB Rev.-

PW4ENG 72-213 SB 2 RECOMMENDED COMP TUBE, BRG#3 PRESS & BREATHER - X-RAY WELDS / REPLACEMENT OF Not Applicable by Serial Number This Document terminates PW4ENG 72-207/SB Rev.4

PW4ENG 72-215 SB 3 RECOMMENDED COMP SHROUD, HPC STAGE 5 - MODIFY TO PRECLUDE OUTER AIRSEAL RUB CONDITION Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-216 SB - RECOMMENDED COMP TUBES, AS02 AND LD02 - IMPROVED LOOP CLAMPING BETWEEN FLG.P AND FLG.R Not Applicable by Serial Number

PW4ENG 72-218 SB 3 RECOMMENDED COMP BRACKET, N1 PROBE ASSY - TO OBTAIN CONSISTENT MEASURING GAP EPL OF Not Applicable by Serial Number

PW4ENG 72-220 SB - RECOMMENDED COMP CASE, HPC FRONT - ALLOW USE OF GENERIC STG.6 AND STG.7 SHROUD SET Not Applicable by Serial Number

PW4ENG 72-221 SB - RECOMMENDED COMP BRACKET, LOOP CLAMP PS3 FLG.K SUPPORT - IMPROVED DURABILITY Not Applicable by Serial Number

PW4ENG 72-222 SB 1 RECOMMENDED COMP VALVE, BYPASS AOHX - INSPECTION FOR PROPERLY INSTALLED SEAL Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-222/SB Rev.-

PW4ENG 72-224 SB 1 RECOMMENDED COMP TUBE, LR06 - REPLACE BRACKETS TO IMPROVE CLEARANCE WITH HPTCC Not Applicable by Serial Number

PW4ENG 72-225 SB 1 RECOMMENDED COMP BOLT, BRG#1.5 RETENTION - APPLY LOCKTITE TO RESTORE BREAK-AWAY TORQUE Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 72-253/SB Rev.1

PW4ENG 72-227 SB 1 RECOMMENDED COMP BOLT, BELLCRANK CLEVISES - REPLACE TO PRECLUDE OFF-SCHEDULE VSV OPS Not Applicable by Serial Number

PW4ENG 72-230 SB 1 RECOMMENDED COMP BRACKETS, FAN CASE - IMPROVE MAINTENANCE FOR SENSE LINE AND HARNESS Not Applicable by Serial Number

PW4ENG 72-233 SB 1 RECOMMENDED COMP BLADE, HPT STG.1 - RESTORE STAGGER ANGLE TO IMPROVE EFFICIENCY OF Not Applicable by Serial Number

PW4ENG 72-234 SB 3 RECOMMENDED COMP STATOR, HPC EXIT - ELIMINATE HEAT SHIELD AND GUIDE VANE SUPPORT Not Applicable by Serial Number

PW4ENG 72-236 SB 2 RECOMMENDED COMP SEAL, AIR LPT STG.4-5 - IMPROVED DURABILITY CEMENT OF Not Applicable by Serial Number

PW4ENG 72-238 SB - RECOMMENDED COMP SEAL, BRG#3 FRONT AND REAR - DELETE MTRL OPTION TO AVOID OIL LEAKAGES Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 72-275/SB Rev.- This Document is terminated with implementation of PW4ENG 72-552/SB Rev.2

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-239 SB - RECOMMENDED COMP HEATSHIELD, MAIN GEAR BOX - ADDITIONAL SUPPORT Not Applicable by Serial Number

PW4ENG 72-241 SB 2 RECOMMENDED COMP BRACKET, VSV ACTUATOR - LOWER ATTACHMENT BOLT RETENTION BY LOCKWIRE Not Applicable by Serial Number

PW4ENG 72-242 SB 1 RECOMMENDED COMP BRACKET, FLG.B1 - W1/W3 HARNESS SUPPORT IMPROVEMENT Not Applicable by Serial Number

PW4ENG 72-243 SB 1 RECOMMENDED COMP TUBE, DIFF. SEAL AIR VENT (AP21,AP34,AP37,AP38) - NEW LOCK PLATES Not Applicable by Serial Number

PW4ENG 72-244 SB - RECOMMENDED COMP DUCT, BRG#3 FRONT COOLING - INCREASE FLOW CAPACITY FOR MORE COOLING Not Applicable by Serial Number

PW4ENG 72-246 SB 1 RECOMMENDED COMP BRACKET, VSV ACTUATOR - REDESIGN TO REDUCE LOWER ATTACHMENT WEAR Not Applicable by Serial Number

PW4ENG 72-247 SB - RECOMMENDED COMP BRACKET, IGNITION EXCITER - IMPROVED DURABILLITY FOR FRONT AND REAR Not Applicable by Serial Number

PW4ENG 72-248 SB 1 RECOMMENDED COMP BRACKETS, ENGINE - REPLACEMENT OF WITH MORE DURABLE UNITS Not Applicable by Serial Number

PW4ENG 72-251 SB - RECOMMENDED COMP BRACKET, HPC CASING - REWORK TO ELIMINATE INTERFERENCE WITH EBU PARTS Not Applicable by Serial Number

PW4ENG 72-253 SB 1 RECOMMENDED COMP BOLT, BRG#1.5 RETENTION - USE HEXBOLT AND KEYWASHER AS LOCKING DEVICE Not Applicable by Serial Number This Document terminates PW4ENG 72-225/SB Rev.1

PW4ENG 72-254 SB 1 RECOMMENDED COMP BLADE, HPC STG.9 THRU STG.15 - BLADE LOCK AND SETSCREW IMPROVEMENT Not Applicable by Serial Number

PW4ENG 72-255 SB 2 MANDATORY COMP BOAS, HPT STAGE 2 - REPL LAYERED CERMATIC BY GRADE ALUMINA CERAMIC Not Applicable by Serial Number This Document terminates PW4ENG 72-425/SB Rev.2

PW4ENG 72-258 SB - RECOMMENDED COMP TUBE, AA01 AND AS25 - RELOCATE TO IMPROVE CLEARANCE FOR W1/W5/IDG WIRE Not Applicable by Serial Number

PW4ENG 72-262 SB 1 RECOMMENDED COMP VANE, FAN EXIT GUIDE - REPLACEMENT TO IMPROVE FUEL CONSUMPTION Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-265 SB 1 RECOMMENDED COMP HEATSHIELD, BRG#3 - LONGER BOLTS TO PREVENT MINIMAL BOLT ENGAGEMENT Not Applicable by Serial Number

PW4ENG 72-268 SB 3 RECOMMENDED COMP CASE, HPC REAR INNER - REMOVE AP-6 INSERT TO ALLOW BSI BY RIDGID SCOPE Not Applicable by Serial Number

PW4ENG 72-269 SB 2 RECOMMENDED COMP VANE, VARIABLE IGV HPC - INTRO OF FORGES VANES TO IMPROVE DURABILITY Not Applicable by Serial Number

PW4ENG 72-271 SB - RECOMMENDED COMP BOLTS, FLANGE "K" - INSTALL LONGER BOLTS FOR AIRFRAMERS BRACKETS Not Applicable by Serial Number

PW4ENG 72-273 SB - RECOMMENDED COMP BRACKET, LOOP CLAMP FLG.B - PRECLUDE INTERFERENCE WITH SCU BRACKET Not Applicable by Serial Number

PW4ENG 72-275 SB - RECOMMENDED COMP SEAL, BRG #3 FRONT AND REAR - REPLACE TO PREVENT EXCESSIVE SLOT WEAR Not Applicable by Serial Number This Document terminates PW4ENG 72-238/SB Rev.- This Document is terminated with implementation of PW4ENG 72-552/SB Rev.2

PW4ENG 72-277 SB - RECOMMENDED COMP NOZZLE, BRG#3 - JET NOZZLE WITH DEFLECTOR TO IMPROVE OIL FLOW W Not Applicable by Serial Number DEFLECTOR

PW4ENG 72-281 SB - RECOMMENDED COMP PIN, B25 LINKAGE - IMPROVE DURABILITY BY REMOVING GROOVE AND RETAINER Not Applicable by Serial Number

PW4ENG 72-284 SB - RECOMMENDED COMP BRACKET, W1 HARNESS SUPPORT - PRECLUDE BENDING LOADS Not Applicable by Serial Number

PW4ENG 72-289 SB - RECOMMENDED COMP BRACKET, VSV ACTUATOR - LOWER ATTACHMENT IMPROVED RETENTION FEATURE Not Applicable by Serial Number

PW4ENG 72-291 SB 4 RECOMMENDED COMP STATOR, HPC STAGE 9/10 - ADD WELD TO IAS HONEYCOMB PLATFORM Not Applicable by Serial Number

PW4ENG 72-293 SB 1 RECOMMENDED COMP HARNESS, WIRE ASSY W3/W5 - IMPROVED CLAMPING THE T2.95 CONNECTORS Not Applicable by Serial Number

PW4ENG 72-294 SB - RECOMMENDED COMP SEAL, LPT STG 3 DUCT - NEW MATERIAL SEAL TO IMPROVE DURABILITY Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-298 SB 1 RECOMMENDED COMP SUPPORT, REAR HPC - COMMON THICKER CONFIGURATION FOR GROWTH MODELS Not Applicable by Serial Number

PW4ENG 72-302 SB - RECOMMENDED COMP TUBE, SCAVENGE BRG.#1 AND #2 - IMPROVED RETENTION BY LONGER BOLT Not Applicable by Serial Number

PW4ENG 72-304 SB 3 RECOMMENDED COMP BLADE, STG.6 HPC - BLADE WITH IMPROVED FATIQUE CRACKING RESISTANCE Closed 11.Jan.2004 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'3' DOCS

PW4ENG 72-305 SB 1 RECOMMENDED COMP BRACKET, W6 HARNESS - REPLACE TO IMPROVE CLEARANCE Not Applicable by Serial Number

PW4ENG 72-306 SB 3 RECOMMENDED COMP BRACKET, EEC - MODIFY TO PROVIDE PROG.PLUG LANYARD ATTACHMENT Not Applicable by Serial Number

PW4ENG 72-307 SB 3 RECOMMENDED COMP BEARING, PMA - RE-DIRECTION OF THE OIL FLOW TO IMPROVE CLNG AND LUB. Not Applicable by Serial Number

PW4ENG 72-309 SB 1 RECOMMENDED COMP LOCK, KEY INTERDIATE CASE - NEW KEY LOCKS WITH FINER CLASS RANGE Closed 20.Jan.1991 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks DELIVERY 20.Jan.1991 PerfRev.:'1' DOCS

PW4ENG 72-310 SB - RECOMMENDED COMP VANE, HPC VARIABLE - MORE DURABLE BEARING AND THRUST WASHER Not Applicable by Serial Number

PW4ENG 72-313 SB 1 RECOMMENDED COMP VANE, HPT STG.2 - REPLACEMENT FOR PERFORMANCE IMPROVEMENT Not Applicable by Serial Number

PW4ENG 72-314 SB 1 RECOMMENDED COMP HUB, HPT STG.1 - REWORK FRONT HUB OUTER LUGS AND AIRSEAL OD SNAP DIA Not Applicable by Serial Number

PW4ENG 72-315 SB 2 RECOMMENDED COMP VANE, HPT STG.2 - IMPROVE CLNG AIRFLOW TO REDUCE LLP THERMAL DISTRESS Not Applicable by Serial Number

PW4ENG 72-316 SB - RECOMMENDED COMP SEAL, DUCT LPT STG.3 - MORE DURABLE CONFIGURATION Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-321 SB 2 RECOMMENDED COMP TUBE ASSY, STAINLESS STEEL - REPL CONICAL SEAT "ST"-TYPE BY "MS"-TYPE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-322 SB 5 RECOMMENDED COMP BLADE, STG.6 HPC - ANTIGALLANT COMPOUND PWA474 TO BLADE ROOT/DISK SLOT Closed 20.Jan.1991 This Document SUPERSEDES PW4ENG 72-322/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks DELIVERY 20.Jan.1991 PerfRev.:'5' DOCS

PW4ENG 72-324 SB 1 RECOMMENDED COMP BRACKET, SUPPORT FOR PB/P3 - MORE RIDGID TO SUSTAIN VIBRATORY STRESS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-325 SB 1 RECOMMENDED COMP STATOR, HPC STG.8 THRU STG.10 - USE BOLTS WITH CONTROLLED SHAFT DIA Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'1' RECORDS

PW4ENG 72-328 SB - MANDATORY COMP SHAFT, LOW PRESSURE TURBINE LPT EDDY CURRENT - INSPECTION OF AD Not Applicable by Serial Number FAA90-22-02

PW4ENG 72-332 SB - RECOMMENDED COMP BRACKET, LINE [AS26] AT FLG.A1 - REPLACE TO IMPROVE CLEARANCE Not Applicable by Serial Number

PW4ENG 72-334 SB - RECOMMENDED COMP STATOR, HPC 11/12 - INSPECT BRAZING AT HONEYCOMB PLATFORM Not Applicable by Serial Number

PW4ENG 72-335 SB 2 RECOMMENDED COMP VANE, VARIABLE STATOR - CHECK RIGGING TO PRECLUDE BLADE FAILURES Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-336 SB 1 OPTIONAL COMP CASE, LPT - INTRODUCTION OF A COMMON DESIGN CASE Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-336/SB Rev.-

PW4ENG 72-338 SB - RECOMMENDED COMP SEAL, HPT STG.2 - ENLARGING THE ID OF THE SEAL TO PREVENT RUBBING Not Applicable by Serial Number

PW4ENG 72-342 SB - RECOMMENDED COMP DUCT, LPT TRANSITION - IMPROVED AXIAL POSITIONING AND DURABILITY Not Applicable by Serial Number

PW4ENG 72-343 SB 1 OPTIONAL COMP PANEL, FAN EXIT LINER (OUTER) - ALT. OF DIFFERENT MTRL COMPOSITION Not Applicable by Serial Number

PW4ENG 72-344 SB 2 RECOMMENDED COMP FAIRING, BIFURCATION FAN EXIT - REMOVE SCREWS TO PRECLUDE INTERFERENCE Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY PW4ENG 72-370/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-382/SB Rev.3

PW4ENG 72-346 SB 5 RECOMMENDED COMP BRACKET, BELLCRANK 2.5 BLEED - FANCASE MOD TO ALLOW BOLTED-ON CONFIG Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-346/SB Rev.4

PW4ENG 72-348 SB - RECOMMENDED COMP BRACKET, SUPPORT - REPLACE TO ELIMINATE INTERFERENCE WITH A1 FLANGE Not Applicable by Serial Number

PW4ENG 72-350 SB - RECOMMENDED COMP CASE, HPC FLANGE H - USE LONGER BOLTS FOR EBU HARDWARE ATTACHMENT Not Applicable by Serial Number

PW4ENG 72-353 SB - RECOMMENDED COMP BRACKET, AIR/OIL COOLER - REPLACE TO FACILITATE AOC REPLACEMENT Not Applicable by Serial Number

PW4ENG 72-354 SB - RECOMMENDED COMP LOCK, VANE CLUSTER AY LPT STG 3/4/5/6 - MORE DURABLE LOCK Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-356 SB 1 RECOMMENDED COMP BLADE, LPT STG 5 & 6 - REMOVE ROUGHENED BLADES FROM SERVICE Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-357 SB - RECOMMENDED COMP COUPLING, STARTER DRIVE - TO PREVENT AXIAL MOVEMENT Closed 19.May.1998 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'-' RECORDS

PW4ENG 72-359 SB 1 RECOMMENDED COMP LOCK, BLADE HPC STG.5 THRU 8 - IMPROVED DURABILITY OF Closed 11.Jan.2004 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'1' DOCS

PW4ENG 72-367 SB - RECOMMENDED COMP SHROUD,HPC STG.5/6/7 - NEW CONFIGURATION WITH HEADLESS SHOULDER PIN Not Applicable by Serial Number

PW4ENG 72-372 SB - RECOMMENDED COMP BEARING, MAIN #3 - INSPECTION BY ECI TO PRECLUDE CAGE FAILURES Not Applicable by Serial Number

PW4ENG 72-373 SB 3 RECOMMENDED COMP LOCK, HPC BLADE STG 5,6,7,8 - REPLACE MULTIPLE LOCK BY INDIVIDUAL LOCK Closed 25.Sep.1992 This Document terminates PW4ENG 72-445/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA 25.Sep.1992 6531:00/H 1'216/C SHOPRECOR PerfRev.:'3' DS

PW4ENG 72-374 SB 1 RECOMMENDED COMP BLADE, HPT STG 2 - INSPECT BY FPI FOR CASTING DEFECT AT TRAILING EDGE Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'1' RECORDS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-375 SB 4 RECOMMENDED COMP PMA, ROTOR/STATOR - CHANGE PMA SYSTEM DESIGN TO IMPROVE DURABILITY Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 72-375/SB Rev.3 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'4' RECORDS

PW4ENG 72-376 SB 2 RECOMMENDED COMP SUPPORT, BEARING #1 - INTRO OF SHORTER TI SUPPORT TO PREVENT CRACKING Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-380 SB 1 RECOMMENDED COMP GEARBOX, MAIN - ALTERNATE MOUNTING PARTS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-381 SB - RECOMMENDED COMP SEAL, HPT BLADE OUTER AIR, NEW SEGMENT PARTNUMBERS Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'-' RECORDS

PW4ENG 72-382 SB 3 RECOMMENDED COMP FAIRING, BIFURCATION FAN EXIT - SPLIT TYPE TO IMPROVE MAINTAINABILITY Open This Document SUPERSEDES PW4ENG 72-161/SB Rev.4 This Document SUPERSEDES PW4ENG 72-344/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-383 SB - RECOMMENDED COMP GEAR, BEVEL BRG (AB2) - OPTION FOR IMPROVED DURABILITY Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-385 SB - RECOMMENDED COMP COVER, BRG #4 - INCLUDE JACKSCREW HOLES TO PREVENT REMOVAL DAMAGE Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'-' RECORDS

PW4ENG 72-389 SB - OPTIONAL COMP CONVERSION, MODEL - FROM BOEING CONFIG TO AIRBUS CONFIG Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-39 SB - RECOMMENDED COMP CASE, FAN EXIT INNER - CHANGE SNAP DIAMETER FOR LPC REMOVAL Not Applicable by Serial Number

PW4ENG 72-391 SB - RECOMMENDED COMP PIN, GUIDE #2 BRG SUPPORT - INTRO OF PIN WITH TIGHTER FIT Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-392 SB 2 RECOMMENDED COMP CASE, HPT - FLANGE M/N SCALLOPS TO REDUCE STRESS/IMPROVE DURABILITY Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 72-393 SB 2 RECOMMENDED COMP HOUSING, BRG#3 - THICKER WALL TO IMPROVE DURABILITY Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-394 SB 2 RECOMMENDED COMP TUBE, BRG#2 PRESS - REPLACE BY BEARING DAMPER OIL SHUT OFF VALVE Not Applicable by Serial Number

PW4ENG 72-395 SB 2 RECOMMENDED COMP BLADE, HPC STG.9 THRU STG.15 - ALUMINIUM OXIDE COATED BLADE TIPS Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-396 SB 1 RECOMMENDED COMP VANE, HPC STG.8 THRU STG.14 - ALLOW INCREASE BLADE TIP INTERACTION/RUB Closed 11.Jan.2004 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'1' DOCS

PW4ENG 72-397 SB 2 RECOMMENDED COMP TUBE, FUEL (FM05,FM06,FM07) - STRONGER CLAMP BRACKET AT K-FLANGE Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 72-397/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 72-398 SB - RECOMMENDED COMP RING, HPC STG.7 - COMMON UPPER SYNCHRONISING RING Not Applicable by Serial Number

PW4ENG 72-399 SB - RECOMMENDED COMP BLADE, HPT STG.2 - UNDO THE RESTAGGER ANGLE OF +1.25 DEGREES Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-403 SB 1 RECOMMENDED COMP CASE, HPC INNER REAR - WEAR RESISTANT ANTI ROTATION SLOT INSERTS Closed 19.May.1998 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'1' RECORDS

PW4ENG 72-404 SB 2 RECOMMENDED COMP SEAL, RING BRG #1/#2 - NEW DESIGN TO REDUCE OIL WEEPAGE Open This Document SUPERSEDES PW4ENG 72-404/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-408 SB 1 RECOMMENDED COMP LINE, AIR SENSE (AS04) - IMPROVED CLAMPING Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-409 SB 1 RECOMMENDED COMP SEAL, AIR HPT 1(INNER) - NEW AIRSEAL FROM WASPALOY MATERIAL Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'1' RECORDS

PW4ENG 72-410 SB 2 RECOMMENDED COMP HARNESS, WIRING W1/W2 - SHORTER E-FLANGE BRACKET TO PREVENT INTERFEREN Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 72-412 SB - OPTIONAL COMP CONVERSION, MODEL - FROM BOEING CONFIG TO MD11 CONFIG Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-413 SB - RECOMMENDED COMP HARNESS, WIRING W1/W2 - NEW C-FLANGE BRACKET TO PREVENT INTERFERENCE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-414 SB - RECOMMENDED COMP PANEL, FAIRING FAN EXIT - MOD TO PREVENT INTERFERENCE WITH PB LINE Not Applicable by Serial Number

PW4ENG 72-415 SB 5 RECOMMENDED COMP SHROUD, HPC STG.6&STG.7 - MODIFICATION TO PREVENT SHROUD LIBERATION Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-415/SB Rev.4

PW4ENG 72-419 SB 3 RECOMMENDED COMP ARM, VSV TO UNISON RING - INSPECT FOR LOOSE RIVET PINS Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-432/SB Rev.4 Reason for this Status This document was terminated the 26.Sep.1992 with implementation of the document PW4ENG 72-432/SB/4.

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-421 SB 1 OPTIONAL COMP GASKET, HPC STAGE 9/10 STATOR - AVAILABILITY OF OPTIONAL GASKET Closed 11.Jan.2004 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'1' DOCS

PW4ENG 72-422 SB 4 MANDATORY COMP BLADE, HPT STAGE 1 - INSPECTION FOR BULGED AIRFOILS Closed 31.Dec.1971 This Document SUPERSEDES PW4ENG 72-422/SB Rev.3 This Document is terminated with implementation of PW4ENG 72-466/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-496/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-662/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-795/SB Rev.- Reason for this Status This document was terminated the 07.Dec.1994 with implementation of the document PW4ENG 72-466/SB/2.

PW4ENG 72-423 SB 2 RECOMMENDED COMP DRUM, HPC FRONT AND REAR - NEW TIERODS MORE DURABLE & IMPR. RETENTION Closed 11.Jan.2004 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'2' DOCS

PW4ENG 72-424 SB 1 OPTIONAL COMP BRACKET ASSY SVA, ELIMINATE INTERFERENCE WITH AP33/AP34 CLAMPING Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'1' RECORDS

PW4ENG 72-425 SB 2 RECOMMENDED COMP BOAS, HPT STAGE 2 - CHECK FOR OF SPALLING TRANSITION DUCT DISTORTION Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 72-255/SB Rev.2

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-426 SB 5 RECOMMENDED COMP VANE, LPT STG.4 - CHANGE PLATFORM TO PREVENT GALLING Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-43 SB 1 RECOMMENDED COMP VANE, HPC STG.13/STG.14 - IMPROVED RETENTION OF ANTI-ROTATION LUGS Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-43/SB Rev.-

PW4ENG 72-430 SB 1 RECOMMENDED COMP VANE, HPT STG.2, LEADING EDGE PLATFORM COOLING FOR AP11 CONFIG ONLY Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-431 SB 1 RECOMMENDED COMP BOLTS, BLEED VALVE DUCT SCREEN - USE LONGER BOLTS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-432 SB 4 MANDATORY COMP ARM, VSV TO UNISON RING - TACK WELD OF RIVET PINS Closed 25.Sep.1992 This Document terminates PW4ENG 72-419/SB Rev.3 This Document SUPERSEDES PW4ENG 72-432/SB Rev.- This Document terminates PW4ENG 72-479/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA 25.Sep.1992 6531:00/H 1'216/C SHOPRECOR PerfRev.:'4' DS

PW4ENG 72-433 SB - RECOMMENDED COMP COOLER, BRG#3 AIR - BOLTED ON SUPPORTS FOR EASIE INSTALLATION Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-434 SB - RECOMMENDED COMP BLADES, HPC STG.9 THRU STG.15 - WIDER PLATFORM TO MEET ROTOR BUILD REQ Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-435 SB 3 RECOMMENDED COMP HUB, INTERMEDIATE (HPT) - IMPROVED FIT TO REDUCE UNBALANCE/VIBRATION Open This Document SUPERSEDES PW4ENG 72-435/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-436 SB 6 RECOMMENDED COMP COMPARTMENT, BRG#4 - INSPECT OIL SUPPLY & SCAV. SYSTEM FOR COKING FAA Closed 31.Dec.1971 2012-06-18 , AMENDMENT 39-16999 This Document SUPERSEDES PW4ENG 72-436/SB Rev.5 This Document is terminated with implementation of PW4ENG 72-472/SB Rev.5 This Document is terminated with implementation of PW4ENG 79-76/SB Rev.4 Reason for this Status This document was terminated the 20.May.1998 with implementation of the document PW4ENG 79-76/SB/4.

PW4ENG 72-438 SB 1 RECOMMENDED COMP BOLTS, BRACKET AGB - NEW BOLTS AND LOCKING FEATURE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-439 SB 3 RECOMMENDED COMP BLADE, LPT STAGE 6 - REDUCED SHROUD WIDTH TO AVOID LOCK UP AT DECELL Open This Document SUPERSEDES PW4ENG 72-439/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-44 SB 2 RECOMMENDED COMP VANE, HPC STG.11/STG.12 - IMPROVED RETENTION OF ANTI-ROTATION LUGS Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-440 SB 2 RECOMMENDED COMP SEAL, AIR HPT 1 (INNER) - APPLY PLASMA COAT AT THE KNIFE EDGES Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-440/SB Rev.1

PW4ENG 72-441 SB 3 RECOMMENDED COMP BRACKET, SVA - PREVENT SHOULDERED STUD ROTATION BY SAFETY WIRE Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 72-441/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'3' RECORDS

PW4ENG 72-442 SB - INFORMATION COMP RINGS, SEAL BRG#2/BR3 - OVERSIZE WIDTH FOR WORN PISTON RING GROOVES Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-443 SB - RECOMMENDED COMP HOUSING, MAIN GEARBOX - INTRO OF BUSHINGS AND PINS FOR REPAIR Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-444 SB - RECOMMENDED COMP VANE, HPC STG.15 COMPRESSOR EXIT - INTRODUCTION OF COMMON PART Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-445 SB 1 MANDATORY COMP BLADE, HPC STG.5 THRU STG.8 - LOCKS INSPECT / APPLY SEALANT/ADHESIVE Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-373/SB Rev.3 Reason for this Status This document was terminated the 26.Sep.1992 with implementation of the document PW4ENG 72-373/SB/3.

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-446 SB 2 RECOMMENDED COMP DISK, HPC DRUM ROTOR - FOR IMPROVED CLEARANCE WITH VANE PLATFORMS Closed 11.Jan.2004 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'2' DOCS

PW4ENG 72-447 SB - RECOMMENDED COMP VANE, HPT STG.1 - THICKER REAR VANE COVER TO ALLOW WELD REPAIR Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-448 SB - RECOMMENDED COMP CASE, INTERMEDIATE - ALLOW SHORTER INSERT FOR ALTERNATE REPAIR Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-449 SB 3 RECOMMENDED COMP LINER, COMBUSTOR OUTER - SHORTER IGNITER BOSS ASSY WITH TIGHTER FIT Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-450 SB 7 MANDATORY COMP TUBE, BRG#3 SCAVENGE - NEW MTRL COUPLING NUT TO PREVENT TQ LOSS Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-450/SB Rev.6 This Document terminates PW4ENG A75-51-PT.E04/SB Rev.14 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'7' DOCS

PW4ENG 72-451 SB 3 RECOMMENDED COMP DISK, HPT STG.1 - REDESIGNED WITH TIGHTER FIT TO REDUCED VIBRATIONS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-452 SB 2 RECOMMENDED COMP STATOR, HPC STG 9/10 - INCREASED AXIAL FLANGE ID TO PREVENT CRACKING Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 14341:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 72-453 SB 1 RECOMMENDED COMP DRAIN, TEC STRUT CAVITY - USE RIVETS TO SEAL DRAIN HOLES Open This Document SUPERSEDES PW4ENG 72-453/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-454 SB 3 RECOMMENDED COMP STATOR, LPC STAGE 4 - IMPROVED RESISTANCE TO HCF TO PREVENT IOD Open This Document SUPERSEDES PW4ENG 72-454/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-455 SB 3 RECOMMENDED COMP TUBE, BRG#3 BREATHER (LB03) - INTRO OF NEW MATERIAL B-NUT Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 72-455/SB Rev.- This Document terminates PW4ENG A75-51-PT.E01/SB Rev.14 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'3' RECORDS

PW4ENG 72-456 SB 4 RECOMMENDED COMP CASE, TURBINE EXHAUST - LIGHTER VERSION WITH IMPROVED BRG#4 COVER Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-457 SB 1 RECOMMENDED COMP WASHER, BRACKET AGB - NEW KEYWASHER TO LOCK ATTACHMENT BOLTS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-459 SB 2 RECOMMENDED COMP TUBE, BRG#3 SCAVENGE/ BREATHER - INTRO SINGLE CONICAL SEAT FITTING Open This Document SUPERSEDES PW4ENG 72-459/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-460 SB 4 MANDATORY COMP SEAL, HYDRAULIC PUMP SHAFT - NEW SEAL AY TO PREVENT HYDR OIL LEAK Open This Document SUPERSEDES PW4ENG 72-460/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-461 SB 5 RECOMMENDED COMP DUCT SEGMENT, LPT STAGE 3 - DUCT SEGMENTS WITH RIVETED SEAL PLATE Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 72-461/SB Rev.4 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'5' RECORDS

PW4ENG 72-462 SB 3 RECOMMENDED COMP BOAS, HPT 2 - IMPROVED COOLING AIR DISTR. TO REDUCED CERAMIC SPALLING Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 72-462/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'3' RECORDS

PW4ENG 72-463 SB 6 RECOMMENDED COMP GEARSHAFT, MOP DRIVE (MB17) - NEW BRG HSG AY PRECLUDES INSTALL. ERRORS Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-463/SB Rev.5 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'6' RECORDS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-464 SB 2 RECOMMENDED COMP STATOR, HPC EXIT - INCORPORATE JACKSCREW HOLES FOR REMOVAL Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 72-464/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 72-465 SB 4 RECOMMENDED COMP BLADE, HPC STAGES 6-7-8 - IMPROVED ROOT ATTACHEMENT TO PRECLUDE CRACKS Closed 19.May.1998 ALTERNATE TO SB PW4ENG 72-589 This Document SUPERSEDES PW4ENG 72-465/SB Rev.3 This Document terminates PW4ENG 72-646/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'4' RECORDS

PW4ENG 72-466 SB 2 RECOMMENDED COMP BLADE, HPT STAGE 1 - ADDITION OF CERAMIC THERMAL BARRIER COATING Closed 06.Dec.1994 This Document terminates PW4ENG 72-422/SB Rev.4 This Document SUPERSEDES PW4ENG 72-466/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 72-468 SB 2 RECOMMENDED COMP PLUGS, BOROSCOPE AP-2, AP-3&AP-7 - SHORTER THREAD TO PREVENT SEIZURE Closed 11.Jan.2004 This Document SUPERSEDES PW4ENG 72-468/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'2' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-471 SB 4 RECOMMENDED COMP VANE, HPT STG.1 - SINGLE VANES(34) REPLACE CLUSTER ASSY(17) Open This Document SUPERSEDES PW4ENG 72-471/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-472 SB 6 MANDATORY COMP COMPARTMENT, BRG#4 - MODIFY TO PRECLUDE COKE FORMATION FAA 2012-06-18 , Closed 06.Dec.1994 AMENDMENT 39-16999 This Document SUPERSEDES PW4ENG 72-472/SB Rev.5 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'6' RECORDS

PW4ENG 72-472 SB 5 RECOMMENDED COMP COMPARTMENT, BRG#4 - MODIFY TO PRECLUDE COKE FORMATION FAA 2012-06-18 , Superseded (Superseded) AMENDMENT 39-16999 This Document terminates PW4ENG 72-436/SB Rev.6 This Document SUPERSEDES PW4ENG 72-472/SB Rev.4 This Document has been SUPERSEDED BY PW4ENG 72-472/SB Rev.6

PW4ENG 72-473 SB 2 OPTIONAL COMP VANE, CLUSTERS LPT - LARGER ANTI-ROTATION VANE LOCKS AND CASING Open This Document SUPERSEDES PW4ENG 72-473/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-474 SB 3 RECOMMENDED COMP RING, SYNCHRONIZING IGV&STG 5 - REMOVE PAINT AT ID TO PREVENT BINDING Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-474/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'3' RECORDS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-475 SB 3 OPTIONAL COMP VANE, VARIABLE HPC STG 5 THRU 8 - IMPROVED UNISON RING DESIGN Closed 11.Jan.2004 This Document SUPERSEDES PW4ENG 72-475/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'3' DOCS

PW4ENG 72-476 SB 4 RECOMMENDED COMP CASE, LPT - MODIFIY TO RE-LOCATE AP-10 BORESCOPE PLUG Open This Document SUPERSEDES PW4ENG 72-476/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-477 SB - RECOMMENDED COMP VANE, HPC VARIABLE INLET THRU 8 - ADD SPACER TO PREVENT VANE BINDING Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 14341:00/H 2'457/C PerfRev.:'-' RECORDS

PW4ENG 72-479 SB - RECOMMENDED COMP ARM, VSV TO UNISON RING - APPLY RTV TO RIVET PIN HEAD AND INSPECTION Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-432/SB Rev.4 Reason for this Status This document was terminated the 26.Sep.1992 with implementation of the document PW4ENG 72-432/SB/4.

PW4ENG 72-480 SB - RECOMMENDED COMP CLEVIS, HPC STG.6 VSV ROD - CHAMFER TO INCREASE CLEARANCE Closed 20.May.2005 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'-' DOCS

PW4ENG 72-481 SB - RECOMMENDED COMP PLUG, TURBINE SHAFT - INTORDUCTION OF ONE COMMON PLUG Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-483 SB 2 RECOMMENDED COMP BRACKET, SVA - INCREASE STIFFNESS TO ELIMINATE HYSTERESIS Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 72-483/SB Rev.- This Document terminates PW4ENG A75-51-PT.G01/SB Rev.14 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 14341:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 72-484 SB 03 MANDATORY COMP BLADE, HPC STG.9 THRU STG.12 - ALUMINIUM OXIDE COATED BLADE TIPS AD Closed 06.Dec.1994 98-23-08 STEP (A)(1) This Document is terminated with implementation of PW4ENG 72-490/SB Rev.02 This Document is terminated with implementation of PW4ENG 72-504/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-572/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 14341:00/H 2'457/C PerfRev.:'03' RECORDS

PW4ENG 72-485 SB 4 RECOMMENDED COMP SHROUD, SET HPC STG 5/6/7 - PRETRECHED RUBSTRIPS MACHINE IN ASSEMBLY Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 72-485/SB Rev.3 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 14341:00/H 2'457/C PerfRev.:'4' RECORDS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-486 SB 2 MANDATORY COMP HPC STATOR SETS, 8TH THRU 14TH WITH ALU-BONZE COATING - INTRO OF AD Closed 06.Dec.1994 98-23-08 This Document SUPERSEDES PW4ENG 72-486/SB Rev.- This Document is terminated with implementation of PW4ENG 72-490/SB Rev.02 This Document is terminated with implementation of PW4ENG 72-504/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-572/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 72-487 SB - OPTIONAL COMP SEAL, HPT STG.1 - CHANGE FROM 3-KNIFE EDGE CONFIG TO 2-KNIFE EDGE Closed 11.Jan.2004 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'-' DOCS

PW4ENG 72-488 SB 3 RECOMMENDED COMP DUCT SEGMENT, LPT STAGE 3 - DUCT SEGMENTS WITH INTEGRAL SEAL PLATE Closed 27.May.2011 This Document is terminated with implementation of FAA2012-22-16-PT.F/AD Rev.- This Document terminates PW4ENG 72-488 PT.A/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'3' DOCS

PW4ENG 72-488 SB 2 RECOMMENDED COMP DUCT SEGMENT, LPT STAGE 3 - APPLICATION OF INTEGRAL SEAL PLATE Closed 31.Dec.1971 PT.A This Document is terminated with implementation of PW4ENG 72-488/SB Rev.3 Reason for this Status This document was terminated the 28.May.2011 with implementation of the document PW4ENG 72-488/SB/3.

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-488 PT.B SB 2 RECOMMENDED COMP DUCT SEGMENT, LPT STAGE 3 - IMPROVED SEAL PLATE RIVETING ATTACHMENT Open This Document SUPERSEDES PW4ENG 72-488/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-489 SB 3 RECOMMENDED COMP RUBSTRIP, FAN CASE - SEGMENTS WITH INTERRUPTED CIRCUMFERENTIAL GROOVE Open This Document SUPERSEDES PW4ENG 72-489/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-491 SB 6 RECOMMENDED COMP BEARING, MGB DEOILER (MD11) - REPLACE BY NEW TO PRECLUDE FAILURES Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 72-491/SB Rev.5 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'6' RECORDS

PW4ENG 72-492 SB 2 RECOMMENDED COMP SPACER, GEARBOX MOUNTING BRACKET - REDESIGN TO ELIMINATE INTERFERENCE Open This Document SUPERSEDES PW4ENG 72-492/SB Rev.- This Document SUPERSEDES PW4ENG 72-498/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-493 SB 02 RECOMMENDED COMP DISK, LPT STG 4&5 - INTRODUCTION OF REDUCED WEIGHT OPTION Not Applicable by Serial Number

PW4ENG 72-494 SB 1 RECOMMENDED COMP HOUSING, BRG#3 - TO ACHIEVE COMMONALITY AND TO REDUCE WEIGHT Open This Document SUPERSEDES PW4ENG 72-494/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-495 SB 1 RECOMMENDED COMP BELLCRANK, SVA - REPL. AFT SPHERICAL BEARING BY A THRUST BEARING Open This Document SUPERSEDES PW4ENG 72-495/SB Rev.- This Document terminates PW4ENG A75-51-PT.G03/SB Rev.14 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-496 SB 2 RECOMMENDED COMP BLADE, HPT STAGE 1 - WITH INT. STIFFENER AND THICKER PLATFORM Open This Document terminates PW4ENG 72-422/SB Rev.4 This Document SUPERSEDES PW4ENG 72-496/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-497 SB 6 RECOMMENDED COMP HOUSING, BRG#2 ASSY - MODIFY TO REDUCE WEIGHT Open This Document SUPERSEDES PW4ENG 72-497/SB Rev.5 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-498 SB 2 RECOMMENDED COMP SUPPORT, SVA - ADD WASHER TO PRECLUDE WEAR DUE TO LOOSE SHOULDER BOLT Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-498/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'2' RECORDS

PW4ENG 72-499 SB 2 RECOMMENDED COMP CONVERSION, MODEL - BOEING PH-I CONFIG TO BOEING PH-I (-1C) CONFIG Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 72-499/SB Rev.1 Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-501 SB 2 RECOMMENDED COMP BRACKET, ASSY AGB - MODIFY TO PREVENT INTERFERENCE/ASSEMBLY PROBLEM Open This Document SUPERSEDES PW4ENG 72-501/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-502 SB 2 RECOMMENDED COMP SUPPORT, HPC EXIT BRUSH SEAL - MODIFY TO PREVENT EXCESSIVE SEAL WEAR Open This Document SUPERSEDES PW4ENG 72-502/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-503 SB 2 RECOMMENDED COMP BLADE, HPC STG.5 - IMPROVED FOD RESIST BY LE CUT BACK AND ROOT IMPROV Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 72-503/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-705/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 72-504 SB 1 OPTIONAL COMP CONVERSION, PHASE III - BOEING CONFIG PHASE I TO PHASE III Closed 06.Dec.1994 This Document terminates PW4ENG 72-484/SB Rev.03 This Document terminates PW4ENG 72-486/SB Rev.2 This Document SUPERSEDES PW4ENG 72-504/SB Rev.- This Document terminates PW4ENG 72-514/SB Rev.3 This Document terminates PW4ENG 72-575/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'1' RECORDS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-505 SB 1 RECOMMENDED COMP SHAFT, LPT - NEW MATERIAL TO PREVENT SEIZURE OF THE TIEROD NUT Open This Document SUPERSEDES PW4ENG 72-505/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-506 SB 2 RECOMMENDED COMP CLEVIS, SVA UNISON RING - NEW LINK ATTACHMENT HARDWARE Open This Document SUPERSEDES PW4ENG 72-506/SB Rev.1 This Document terminates PW4ENG A75-51-PT.G04/SB Rev.14 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-507 SB 3 RECOMMENDED COMP TUBE, ASSY LP09, IMPROVED CLAMPING - INCORPORATION OF Open This Document SUPERSEDES PW4ENG 72-507/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-508 SB 2 RECOMMENDED COMP BRACKET, LP35/PMA CABLE SUPPORT - REPL. TO ELIMINATE INTERFERENCE COND Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-508/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'2' RECORDS

PW4ENG 72-509 SB 1 RECOMMENDED COMP COOLER, BRG#3 AIR - SHORTER ROPE SEAL CHANNEL TO PREVENT INTERFERENCE Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 72-509/SB Rev.- Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-510 SB 2 RECOMMENDED COMP LUG, HPC CASE SVA BRACKET - INTRO HARD STEEL BUSH TO REDUCE WEAR Closed 11.Jan.2004 This Document SUPERSEDES PW4ENG 72-510/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'2' DOCS

PW4ENG 72-511 SB 1 RECOMMENDED COMP VANE, LPT STG.6 - REPLACE "THIN SOLID"-MODEL BY "THICK HOLLOW"-MODEL Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-511/SB Rev.-

PW4ENG 72-512 SB 2 OPTIONAL COMP CONVERSION, MODEL - BOEING PH-III CONFIG TO BOEING PH-III (-3B) CONFIG Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 72-512/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 72-513 SB 1 RECOMMENDED COMP SUPPORT, LPT STG 3 DUCT SEAL RING - HARDCOATING TO REDUCE WEAR Open This Document SUPERSEDES PW4ENG 72-513/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-514 SB 3 MANDATORY COMP VANE, HPT STG.1 - TRAILING EDGE CUTBACK TO IMPROVE SM AD 98-23-08 Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-490/SB Rev.02 This Document is terminated with implementation of PW4ENG 72-504/SB Rev.1 This Document SUPERSEDES PW4ENG 72-514/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-572/SB Rev.- Reason for this Status This document was terminated the 07.Dec.1994 with implementation of the document PW4ENG 72-504/SB/1.

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-515 SB 2 RECOMMENDED COMP DISK, HPC STAGE 5 - REMOVE BALANCE FLANGE TO PRECLUDE CRACK Closed 11.Jan.2004 DEVELOPMNT This Document SUPERSEDES PW4ENG 72-515/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-560/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'2' DOCS

PW4ENG 72-517 SB 2 RECOMMENDED COMP PLUG, BOROSCOPE HPC AP-3 & AP-7 - REPL. BETTER THERMAL COMPATIBILITY Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-517/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'2' RECORDS

PW4ENG 72-518 SB 2 RECOMMENDED COMP PLUG, BOROSCOPE HPC AP-2 - REPL. BETTER THERMAL COMPATIBILITY Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-518/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'2' RECORDS

PW4ENG 72-523 SB 2 RECOMMENDED COMP AGB, BRG# AB-ALL - MORE DURABLE BEARINGS COMMON TO 100"/112" MODELS Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-523/SB Rev.1 This Document has been SUPERSEDED BY PW4ENG 72-523/SB Rev.3

PW4ENG 72-523 SB 3 RECOMMENDED COMP AGB, BRG# AB-ALL - MORE DURABLE BEARINGS COMMON TO 100"/112" MODELS Open This Document SUPERSEDES PW4ENG 72-523/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-524 SB 6 RECOMMENDED COMP HOUSING, MOF - INTRO COVER WITH 7/16" STUDS TO PACKING DAMAGE Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-524/SB Rev.5 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'6' RECORDS

PW4ENG 72-525 SB 9 MANDATORY COMP HOUSING, MOF - MODIFY TO ACCEPT DUAL OIL FILTER TO PRECLUDE IFSD Closed 06.Feb.1996 This Document SUPERSEDES PW4ENG 72-525/SB Rev.8 This Document terminates PW4ENG 79-62/SB Rev.2 This Document terminates PW4ENG 79-69/SB Rev.- This Document terminates PW4ENG 79-79/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks P&W ARC 06.Feb.1996 19796:00/H 3'268/C PerfRev.:'9' 508209

PW4ENG 72-526 SB 1 RECOMMENDED COMP BOLT, LOOP CLAMP BRACKET ASSY - UNPLATED BOLTS TO REDUCE TORQUE Open This Document SUPERSEDES PW4ENG 72-526/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-527 SB 2 RECOMMENDED COMP RING, HPC STAGE 5-6 UNISON - LOCATION PIN TO PRECLUDE INSTALL. ERRORS Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-527/SB Rev.- This Document terminates PW4ENG 72-532/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'2' RECORDS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-528 SB 1 RECOMMENDED COMP CLIP, TIEROD HPC DRUM - IMPROVED RETENTION Closed 20.May.2005 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'1' DOCS

PW4ENG 72-529 SB 3 RECOMMENDED COMP SPACER, FLANGE HPT DISK - REDESIGN TO PREVENT INCORRECT INSTALLATION Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-529/SB Rev.-

PW4ENG 72-531 SB 2 MANDATORY COMP BEARING, MGB MOP DRIVE (MB16) - REDESIGNED BRG TO PRECLUDE FAILURES Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-531/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'2' RECORDS

PW4ENG 72-532 SB 2 RECOMMENDED COMP HPC, STG 5 - CHECK FOR CORRECT INSPECTION SYNCRONISING RING PLATE Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-527/SB Rev.2 This Document SUPERSEDES PW4ENG 72-532/SB Rev.- Reason for this Status This document was terminated the 20.May.1998 with implementation of the document PW4ENG 72-527/SB/2.

PW4ENG 72-533 SB 1 RECOMMENDED COMP GASKET, SPRING - REPL. FOR BETTER FIT OF HPT2 DUCT SEGMENT SUPPORT Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-533/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'1' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-534 SB 2 RECOMMENDED COMP BRACKET, SVA - EXPANDABLE UPPER MOUNT STUDS TO PRECLUDED LOOSENESS Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-534/SB Rev.1 This Document terminates PW4ENG A75-51-PT.G02/SB Rev.14 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'2' DOCS

PW4ENG 72-535 SB 2 RECOMMENDED COMP PIN, 2.5 BLEED VALVE - INTRO PIN WITH A GREATER SHEAR SECTION Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-535/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'2' DOCS

PW4ENG 72-536 SB 4 RECOMMENDED COMP BLADE, LPC STG 1 (FAN) - SHROUD HONED HARDFACE TO PRECLUDE LOCK-UPS Open This Document SUPERSEDES PW4ENG 72-536/SB Rev.3 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-537 SB 2 RECOMMENDED COMP HUB, HPT STG.2 - REVISE CLNG TO ACCOMODATED CONVERTED PH-III LPT Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-537/SB Rev.-

PW4ENG 72-538 SB 1 RECOMMENDED COMP LUG, MAIN GEARBOX - INTRO OF THREADED CENTER HOLE TO EASE REMOVAL Closed 19.May.1998 This Document SUPERSEDES PW4ENG-72-538/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'1' RECORDS

PW4ENG 72-539 SB 1 RECOMMENDED COMP DISK, LPT STG.5 - WEIGHT REDUCTION Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-539/SB Rev.-

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-540 SB 1 RECOMMENDED COMP TIE ROD, LPT SHAFT - NEW NUTS TO PREVENT A POTENTIAL INTERFERENCE Not Applicable by Serial Number

PW4ENG 72-541 SB 1 RECOMMENDED COMP COUNTERWEIGHT, HPT STAGE 1 - INCREASE RANGE FOR EASIER BALANCING Closed 20.May.2005 This Document SUPERSEDES PW4ENG-72-541/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'1' DOCS

PW4ENG 72-542 SB 1 RECOMMENDED COMP PLATE, COMBUSTOR GUIDE - REPLACE TO PREVENT STIFFNER DISLODGEMENT Open This Document SUPERSEDES PW4ENG 72-542/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-543 SB 1 RECOMMENDED COMP BLADES, HPC STG.9 THRU STG.15 - ROOT CHAMFERS TO MAKE COMMON FOR PH-3 Open This Document SUPERSEDES PW4ENG 72-543/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-544 SB 2 RECOMMENDED COMP BLADE, LPC STG 1.6 - BEAD PEENING TO IMPROVE FATIQUE CRACK RESISTANCE Open This Document SUPERSEDES PW4ENG 72-544/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-545 SB 1 RECOMMENDED COMP HOUSING, GEARBOX DRIVE SHAFT - ADD DOWEL PIN HOLE Open This Document SUPERSEDES PW4ENG 72-545/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-546 SB 1 OPTIONAL COMP PANEL,FAN EXIT LINER - IMPROVED SEALING TO REDUCE PERFORMANCE LOSS Open This Document SUPERSEDES PW4ENG 72-546/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-547 SB 1 RECOMMENDED COMP BRACKET, TCA SOLENOID - REPLACE TO PREVENT CRACKING Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-548 SB 2 RECOMMENDED COMP CASE, INTERMEDIATE - REDUCED WEIGHT/STRESS & IMPROVED TRC/TCA BRACKET Open This Document SUPERSEDES PW4ENG 72-548/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-550 SB 4 RECOMMENDED COMP SHROUD, HPC STG 10 THRU 14 - CHANGE ANTI ROT NOTCH DUE TO INTEFERENCE Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-550/SB Rev.3 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'4' DOCS

PW4ENG 72-552 SB 2 RECOMMENDED COMP SEAL, SEAT BRG #3 - RECONFIGURED OIL DISTRIBUTION TO REDUCE BLACK OIL Closed 19.May.1998 This Document terminates PW4ENG 72-238/SB Rev.- This Document terminates PW4ENG 72-275/SB Rev.- This Document SUPERSEDES PW4ENG 72-552/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'2' RECORDS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-553 SB 1 RECOMMENDED COMP VANE, LPT STG.3 - NEW SECURING BOLTS TO PREVENT BOLT HOLE CORROSION Open This Document SUPERSEDES PW4ENG 72-553/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-554 SB 2 RECOMMENDED COMP EBU, PARTS - TRANSFER FROM BOEING TO PRATT & WHITNEY Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-555 SB 1 RECOMMENDED COMP BLADE, LPT STG 3 THRU 6 - IMPROVED AERODYNAMICS AND SURFACE FINISH Not Applicable by Serial Number

PW4ENG 72-556 SB 2 RECOMMENDED COMP MODULE, LPT - ADD FLANGE FOR EASIER BALANCING PROCEDURE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-557 SB 3 RECOMMENDED COMP BLADE, HPC STG 5 - CHANGE CAMBER/LE THICKNESS/ WEIGHT FOR DURABILITY Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-557/SB Rev.2 This Document terminates PW4ENG 72-617/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-705/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'3' RECORDS

PW4ENG 72-558 SB 1 RECOMMENDED COMP COMBUSTER, OUTER LINER - SUBSTITUDE PH-I GUIDE ASSY BY PH-III GUIDE Open This Document SUPERSEDES PW4ENG 72-558/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-559 SB 2 RECOMMENDED COMP CASE, DIFFUSER - REDUCED WEIGHT AND LESS PARTS Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-560 SB 1 RECOMMENDED COMP DISK, HPC STG.5 - REDUCED WEIGHT AND W/O BALANCE FLANGE Closed 20.May.2005 This Document terminates PW4ENG 72-515/SB Rev.2 This Document SUPERSEDES PW4ENG 72-560/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'1' DOCS

PW4ENG 72-561 SB 1 RECOMMENDED COMP ROTOR, HPC FRONT DRUM - REDUCED WEIGHT Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-561/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'1' DOCS

PW4ENG 72-562 SB 3 RECOMMENDED COMP SHAFT, HPC DRUM ROTOR DRIVE - RESTORED TARGET LIFE AND REDUCED WEIGHT Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-562/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'3' DOCS

PW4ENG 72-563 SB 2 RECOMMENDED COMP BRACKET, DEOILER-IDLER TUBE (LP35) - REPLACE TO IMPROVE CLEARANCE Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-563/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'2' RECORDS

PW4ENG 72-564 SB - RECOMMENDED COMP CASE, DIFFUSER - LONGER MOUNT PAD INSTALLATION BOLTS Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-565 SB 4 RECOMMENDED COMP BLADE, HPC STG 14/15 - PLATFORM BUILD CLEARANCE INCREASE Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-565/SB Rev.3 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'4' DOCS

PW4ENG 72-566 SB 3 RECOMMENDED COMP VALVE, B25 - NEW DAMPER ASSY AND SQUARE CAM FOLLOWER Closed 31.Dec.1971 This Document SUPERSEDES PW4ENG 72-566/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-659/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-660/SB Rev.3 Reason for this Status This document was terminated the 20.May.1998 with implementation of the document PW4ENG 72-659/SB/2.

PW4ENG 72-567 SB 1 RECOMMENDED COMP DIFFUSER, THICKWALL CASE AY - INTRODUCTION OF Open This Document SUPERSEDES PW4ENG 72-567/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-568 SB 2 RECOMMENDED COMP BLADE, HPC STG.12 - UNIFORM TIP COATING THICKNESS AFTER GRINDING Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-568/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'2' DOCS

PW4ENG 72-570 SB 1 RECOMMENDED COMP TUBE, BRG#3 WEEP - ADD DEFLECTOR TO PRECLUDE OIL TANK SHIELD DISTRESS Closed 27.May.2011 This Document SUPERSEDES PW4ENG 72-570/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'1' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-571 SB 1 RECOMMENDED COMP SEAL, BRUSH HPT1 - SUPPORT RING MOD TO PREVENT RIVET WEAR / LOOSENESS Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-571/SB Rev.-

PW4ENG 72-573 SB 1 RECOMMENDED COMP VANE, HPC VARIABLE - ELIMINATION OF NON-LINED BEARINGS FOR CORROSION Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-573/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'1' RECORDS

PW4ENG 72-574 SB 1 RECOMMENDED COMP GEARBOX, MAIN CORE - CREATION OF A COMMON MAIN GEARBOX FOR ALL Open MODELS This Document SUPERSEDES PW4ENG 72-574/SB Rev.- This Document terminates PW4ENG 72-581/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-575 SB 2 MANDATORY COMP BLADE, HPC STAGE 13-14-15 - INTRO OF ZR-OX TIPS TO PRECLUDE SURGES Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-490/SB Rev.02 This Document is terminated with implementation of PW4ENG 72-504/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-572/SB Rev.- This Document SUPERSEDES PW4ENG 72-575/SB Rev.1 Reason for this Status This document was terminated the 07.Dec.1994 with implementation of the document PW4ENG 72-504/SB/1.

PW4ENG 72-576 SB 1 RECOMMENDED COMP GEAR, IDG SPUR BRG (MB9/MB10) - MORE DURABLE AND COMMON OPTION Open (Next Shop Visit) This Document SUPERSEDES PW4ENG 72-576/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-577 SB 1 RECOMMENDED COMP NUT, SVA UPPER MOUNT - NEW NUT OPTION Open This Document SUPERSEDES PW4ENG 72-577/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-578 SB 3 RECOMMENDED COMP CASE, LPT FRONT RAIL - MODIFY RAIL AND SLOTS TO PREVENT CRACKING Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-578/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'3' DOCS

PW4ENG 72-579 SB 3 RECOMMENDED COMP CASE, ASSY LPT - MORE DURABLE STG.3 THRU STG.6 ANTI-ROTATION SLOT Open This Document SUPERSEDES PW4ENG 72-579/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-580 SB 2 RECOMMENDED COMP LPT VANE CLUSTERS, VANE LOCK WITH MORE BEARING AREA - INTRO OF Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-580 SB 1 RECOMMENDED COMP LPT VANE CLUSTERS, VANE LOCK WITH MORE BEARING AREA - INTRO OF Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-580 SB 3 RECOMMENDED COMP LPT VANE CLUSTERS, VANE LOCK WITH MORE BEARING AREA - INTRO OF Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-581 SB 1 RECOMMENDED COMP GEARSHAFT, SPUR - REMOVE THE CUP PLUG Closed 19.May.1998 This Document is terminated with implementation of PW4ENG 72-574/SB Rev.1 This Document SUPERSEDES PW4ENG 72-581/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'1' RECORDS

PW4ENG 72-582 SB 2 RECOMMENDED COMP PLATES, MODULE IDENTIFICATION - MOD. TO PREVENT PHI/PHIII MODULE MIX Closed 11.Jan.2004 This Document SUPERSEDES PW4ENG 72-582/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'2' DOCS

PW4ENG 72-583 SB 1 RECOMMENDED COMP BOLTS, HPC STG 9 BLD COVER - REPLACE DUE TO OXIDATION Open This Document SUPERSEDES PW4ENG 72-583/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-584 SB 3 RECOMMENDED COMP BEARING, AGB (AB-1) - NEW BRG TO PRECLUDE FAILURES AND IMPROVE LIFE Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-584/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'3' RECORDS

PW4ENG 72-585 SB 1 OPTIONAL COMP CASE, FAN EXIT INNER - INSULATION BLANKET OPTIONAL PARTNUMBERS Open This Document SUPERSEDES PW4ENG 72-585/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-586 SB 1 RECOMMENDED COMP DRUM, HPC FRONT - INTRO TANDEM LOCK SLOTS TO ALLOW ADDITIONAL BLADES Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-586/SB Rev.-

PW4ENG 72-587 SB 2 RECOMMENDED COMP CASE, FAN EXIT INNER - CONFIG W/ TAPERED B25 DUCT X-SECT FOR STIFFNESS Open This Document SUPERSEDES PW4ENG 72-587/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-589 SB 1 RECOMMENDED COMP BLADE, HPC STAGES 6-7-8 - IMPROVED ROOT ATTACHEMENT TO PRECLUDE CRACKS Closed 11.Jan.2004 ALTERNATE TO SB PW4ENG 72-465 This Document SUPERSEDES PW4ENG 72-589/SB Rev.- This Document terminates PW4ENG 72-646/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'1' DOCS

PW4ENG 72-59 SB - RECOMMENDED COMP COOLER, BRG#3 AIR BUFFER, FEATURING BRAZED JOINTS Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 72-590 SB 1 RECOMMENDED COMP SEAL, OUTER LPT STG 3-4 - ADD STIFFNER PLATES FOR DURABILITY Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-590/SB Rev.-

PW4ENG 72-591 SB 1 RECOMMENDED COMP VANE, FAN EXIT GUIDE - SOLID METAL LE TO IMPROVE DURABILITY Open This Document SUPERSEDES PW4ENG 72-591/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-592 SB 2 RECOMMENDED COMP MODULE, LPT THIN WALL - APPROVAL TO USE -3CN MODULE FOR -3 ENGINES Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 72-592/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 72-593 SB 3 INFORMATION COMP SEAL, OUTER LPT STG 3-6 - CONICAL SEAL PLATES TO IMPROVE DURABILITY Open This Document SUPERSEDES PW4ENG 72-593/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-594 SB 1 RECOMMENDED COMP CONE, INLET SEGMENT ASSY W/ IMPROVED TRAILING EDGE - REPAIR OF Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 72-594/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 72-595 SB 1 RECOMMENDED COMP ENGINE, CLAMPING - NUTPLATE REPLACEMENT TO PREVENT BOLT SEIZING Open This Document SUPERSEDES PW4ENG 72-595/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-596 SB 2 RECOMMENDED COMP VANE, LPT STG.3 - MODIFY INNER SUPPORT FLANGE TO PREVENT CRACKING Open This Document SUPERSEDES PW4ENG 72-596/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-597 SB 2 RECOMMENDED COMP BLADE, LPT STG.6 - REMOVAL OF OBSOLUTE BLADE ROOT COATING PWA75-1 Open This Document SUPERSEDES PW4ENG 72-597/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-598 SB 1 RECOMMENDED COMP TRANSDUCER, SPEED N1 - REPLACE BRACKET FOR CORRECT SENSING GAP Open This Document SUPERSEDES PW4ENG 72-598/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-600 SB 3 RECOMMENDED COMP BLADE, LPC STG 1.6 - ECI TO DETECT CRACKS / ONE TIME Closed 31.Dec.1971 This Document SUPERSEDES PW4ENG 72-600/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-651/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-665/SB Rev.2 Reason for this Status This document was terminated the 22.Feb.2000 with implementation of the document PW4ENG 72-651/SB/1.

PW4ENG 72-601 SB 1 RECOMMENDED COMP GUIDE, OUTER COMBUTION LINER IGNITER - MOD TO PRECLUDE GUIDE ROTATION Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-601/SB Rev.- This Document terminates PW4ENG 74-9/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'1' RECORDS

PW4ENG 72-602 SB 1 RECOMMENDED COMP SUPPORT, HPC REAR - FEATURING FULL RING PULLER SURFACE FOR DISASSEMBLY Closed 11.Jan.2004 This Document SUPERSEDES PW4ENG 72-602/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'1' DOCS

PW4ENG 72-603 SB 1 RECOMMENDED COMP EBU, PARTS - TRANSFER FROM BOEING TO PRATT & WHITNEY Open This Document SUPERSEDES PW4ENG 72-603/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-605 SB 1 OPTIONAL COMP GEARBOX, CLEVISES AND LUG GUIDE - USE TITANIUM PARTS ISO STEEL PARTS Open This Document SUPERSEDES PW4ENG 72-605/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG SB 2 OPTIONAL COMP COVER, BRG.#4, REPLACEMENT OF STEEL PARTS WITH TITANIUM PARTS Not Applicable by Serial Number 72-606-PT.B This Document SUPERSEDES PW4ENG 72-606/SB Rev.1

PW4ENG 72-607 SB 1 RECOMMENDED COMP TUBE, HPC STG.9 BLEED- MODIFICATION TO INCREASE AIRFLOW Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-607/SB Rev.-

PW4ENG 72-608 SB 2 RECOMMENDED COMP BLADE, LPT STG.6 - INCREASE OUTER SHROUD GAP TO AVOID VIBRATION Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-608/SB Rev.1

PW4ENG 72-609 SB 1 RECOMMENDED COMP BRACKET, E-FLANGE - INCREASE CLEARANCE WITH PT4.95 SENSE TUBE (AS04) Closed 19.May.1998 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'1' RECORDS

PW4ENG 72-610 SB 1 OPTIONAL COMP BEARING, BRG#4 - AVAILABILITY OF ADDITIONAL BEARING OPTIONS Open PT.A This Document SUPERSEDES PW4ENG 72-610/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-610 PT.B SB 1 OPTIONAL COMP BEARING, BRG#1.5 - AVAILABILITY OF ADDITIONAL BEARING OPTIONS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-611 SB - RECOMMENDED COMP BEARING, BRG#3 - OPTIONAL BRG COMMON TO HIGHER THRUST MODELS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-612 SB 1 RECOMMENDED COMP BOLTS, FAN EXIT CASE - REPLACE BY LONGER BOLTS AND STRONGER BOLTS Open This Document SUPERSEDES PW4ENG 72-612/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-613 SB - RECOMMENDED COMP PLUG, LPT (AP-10) - PREVENT INTERFERENCE OF THE BAFFLE AND THE PLUG Closed 27.May.2011 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'-' DOCS

PW4ENG 72-614 SB - RECOMMENDED COMP BLADE, HPT STG 2 - MISMACHINED BLADE ROOTS / REMOVE SUSPECT UNITS Not Applicable by Serial Number

PW4ENG 72-615 SB 1 RECOMMENDED COMP BLADE, HPT STG 2 - DAMPER POCKET SCC PROTECTION BY PWA545 Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-615/SB Rev.- This Document terminates PW4ENG 72-632/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-700/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-723/SB Rev.-

PW4ENG 72-616 SB - RECOMMENDED COMP NUT, DEOILER IDLER BRG RETAINING - INCREASE TORQUE TO PREVENT SPINNING Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 72-664/SB Rev.2

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-617 SB 1 RECOMMENDED COMP BLADE, HPC STAGE 5 - BOROSCOPE INSPECTION OF DOVETAIL FOR CRACKING Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-557/SB Rev.3 This Document SUPERSEDES PW4ENG 72-617/SB Rev.- This Document is terminated with implementation of PW4ENG 72-705/SB Rev.- Reason for this Status This document was terminated the 20.May.1998 with implementation of the document PW4ENG 72-557/SB/3.

PW4ENG 72-618 SB 1 RECOMMENDED COMP DISK, LPC - NEW LIGHT WEIGHT DRUM ROTOR WITH IMPROVED BALANCE Open This Document SUPERSEDES PW4ENG 72-618/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-619 SB 3 RECOMMENDED COMP CAP, INLET CONE - APPLY VITON COATING TO IMPROVE IMPACT RESISTANCE Open This Document SUPERSEDES PW4ENG 72-619/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-620 SB - RECOMMENDED COMP TUBE, HPC STG.15 THRUST BALANCE - H-FLANGE BRACKET REPL. FOR CLEARANCE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-621 SB - RECOMMENDED COMP RUNNERS, HPC UNISON RING - MORE DURABLE PART AND NEW TAB WASHER Closed 19.May.1998 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'-' RECORDS

PW4ENG 72-622 SB 3 OPTIONAL COMP FAIRINGS & LINERS, CASE INTERM. - MODS TO IMPROVE RELIABILITY Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-622/SB Rev.2 Perform within an unlimited threshold.

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-622 SB 2 OPTIONAL COMP FAIRINGS & LINERS, CASE INTERM. - MODS TO IMPROVE RELIABILITY Superseded (Not Applicable by Serial Number) This Document SUPERSEDES PW4ENG 72-622/SB Rev.1 This Document has been SUPERSEDED BY PW4ENG 72-622/SB Rev.3

PW4ENG 72-622 SB 1 OPTIONAL COMP FAIRINGS & LINERS, CASE INTERM. - MODS TO IMPROVE RELIABILITY Superseded (Not Applicable by Serial Number) This Document SUPERSEDES PW4ENG 72-622/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-622/SB Rev.2

PW4ENG 72-622 SB - OPTIONAL COMP FAIRINGS & LINERS, CASE INTERM. - MODS TO IMPROVE RELIABILITY Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY PW4ENG 72-622/SB Rev.1

PW4ENG 72-622PT.A SB 3 OPTIONAL COMP FAIRINGS, INTERMEDIATE CASE STRUT - IMPROVED EROSION RESISTANCE Closed 20.May.2005 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'3' DOCS

PW4ENG 72-622PT.B SB 3 OPTIONAL COMP FAIRINGS, FAN EXIT LINER AND BIFURCATION - ELIMINATE BONDED CSK WASHER Closed 20.May.2005 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'3' DOCS

PW4ENG 72-622PT.C SB 3 OPTIONAL COMP COVER, FAN EXIT CASE - SHORTER ANCHOR NUT RIVETS Closed 20.May.2005 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'3' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-623 SB - RECOMMENDED COMP HEATSHIELD, BRG#3 TUBING - ENLARGED CLNG HOLES TO PREVENT RUPTURE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-624 SB 1 RECOMMENDED COMP BRACKET, FLNG.N FIRE LOOP SUPPORT - PRECLUDE INSTALLATION STRESS Open This Document SUPERSEDES PW4ENG 72-624/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-625 SB 1 RECOMMENDED COMP BLADE, HPT STG 2 - TIP FEATURES CUBIC BORON NITRIDE (CBN) Closed 19.May.1998 This Document SUPERSEDES PW4ENG 72-625/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'1' RECORDS

PW4ENG 72-626 SB - RECOMMENDED COMP BLADE, HPT STG.1 - TIP COATING SUBSTITUTION OF SAT BY CBN Closed 20.May.2005 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'-' DOCS

PW4ENG 72-627 SB 2 RECOMMENDED COMP DISK, HPT STG.2 - REMOVE PLUGS TO IMPROVE COOLING FLOW TO BRG #3 COMPT Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-627/SB Rev.1

PW4ENG 72-628 SB - MANDATORY COMP SEAL, AIR HPT STG2 ROTATING - INSPECTION FOR CRACKING Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-628/SB Rev.1

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-628 SB 2 MANDATORY COMP SEAL, AIR HPT STG2 ROTATING - FPI CHECK FOR CRACKING FAA 98-19-03 STEP (A) Closed 31.Dec.1971 This Document SUPERSEDES PW4ENG 72-628/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-637/SB Rev.2 Reason for this Status This document was terminated the 20.May.1998 with implementation of the document PW4ENG 72-637/SB/2.

PW4ENG 72-629 SB - RECOMMENDED COMP CONE, REAR INLET - TRAILING EDGE IMPROVEMENT TO PRECLUDE DELAMINATION Rotable Driven - Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 72-630 SB 01 RECOMMENDED COMP SEAL, BRUSH HPC EXIT - IMPROVED SUPPORT ASSEMBLY Not Applicable by Serial Number

PW4ENG 72-632 SB 1 RECOMMENDED COMP BLADE, HPT STG 2 - SCC MANAGEMENT BY DAMPER POCKET AND PS3 INSPECTION Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 72-615/SB Rev.1 This Document SUPERSEDES PW4ENG 72-632/SB Rev.- This Document is terminated with implementation of PW4ENG 72-686/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-716/SB Rev.- This Document is terminated with implementation of PW4ENG 72-723/SB Rev.-

PW4ENG 72-633 SB 1 RECOMMENDED COMP VALVE, 2.5 BLEED - PERIODIC LUBRICATION TO PRECLUDE FAILURE Closed 31.Dec.1971 This Document SUPERSEDES PW4ENG 72-633/SB Rev.- This Document is terminated with implementation of PW4ENG 72-659/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-660/SB Rev.3 Reason for this Status This document was terminated the 20.May.1998 with implementation of the document PW4ENG 72-659/SB/2.

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-636 SB 3 MANDATORY COMP VANE, HPT STG.2 - COOLING FLOW INCREASE (HIGH FLOW CONFIG) FAA 98-19-03 STEP Open (C) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document 07.Nov.2004 Perform initially before(F) 09.Nov.2004

PW4ENG 72-636 SB 2 MANDATORY COMP VANE, HPT STG.2 - COOLING FLOW INCREASE (HIGH FLOW CONFIG) FAA 98-19-03 STEP Closed 19.May.1998 (C) This Document SUPERSEDES PW4ENG 72-636/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C Was due at: 07.Nov.2004 PerfRev.:'2' RECORDS

PW4ENG 72-637 SB 2 MANDATORY COMP SEAL, HPT STG2 ROTATING - REDESIGN LESS SUSCEPTIBLE TO CRACKING FAA Closed 19.May.1998 98-19-03 STEP (C) This Document terminates PW4ENG 72-628/SB Rev.2 This Document SUPERSEDES PW4ENG 72-637/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'2' RECORDS

PW4ENG 72-637 SB 1 MANDATORY COMP SEAL, HPT STG2 ROTATING - NEW PART LESS SUSCEPTIBLE TO CRACKING AD 98-19-03 Superseded (Superseded) STEP (C) This Document SUPERSEDES PW4ENG 72-637/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-637/SB Rev.2

PW4ENG 72-638 SB 1 RECOMMENDED COMP PMA, ROTOR/STATOR - INSPECT FOR BACKWARDS INSTALLED SEAL SEAT Open This Document SUPERSEDES PW4ENG 72-638/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-641 SB - RECOMMENDED COMP TUBE, HPC STG.9 BLEED - INTRO MORE DURABLE PLASMA COATING Closed 20.May.2005 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'-' DOCS

PW4ENG 72-642 SB 1 RECOMMENDED COMP SEAL, BRG#1 - NEW SEAL AND SEAT TO REDUCE OIL WEEPAGE Closed 21.Feb.2000 This Document SUPERSEDES PW4ENG 72-642/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 55119:00/H 8'497/C PerfRev.:'1' DOCS

PW4ENG 72-642 SB - RECOMMENDED COMP SEAL, BRG#1 - NEW SEAL AND SEAT TO REDUCE OIL WEEPAGE Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-642/SB Rev.1

PW4ENG 72-645 SB 1 RECOMMENDED COMP HOSE, SENSE AIR (AS12) - MEETING ALL APPLICABLE DESIGN REQUIREMENTS Not Applicable by Serial Number

PW4ENG 72-646 SB - RECOMMENDED COMP BLADE, HPC STG.7 - DOVETAIL CRACK INSPECTION Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-465/SB Rev.4 This Document is terminated with implementation of PW4ENG 72-589/SB Rev.1 Reason for this Status This document was terminated the 20.May.1998 with implementation of the document PW4ENG 72-465/SB/4.

PW4ENG 72-647 SB 1 INFORMATION COMP PARTS, PHASE III - PERMISSION TO USE PRODUCTION PARTS IN CONVERTED ENG Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-647/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-647/SB Rev.2

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-647 SB 2 INFORMATION COMP PARTS, PHASE III - PERMISSION TO USE PRODUCTION PARTS IN CONVERTED ENG Information Only This Document SUPERSEDES PW4ENG 72-647/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 72-648 SB - RECOMMENDED COMP SEAL, BRG#3 BREATHER & SCAVENGE TUBE - INTRO OF ONE PIECE SEAL RING Closed 21.Feb.2000 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 33567:00/H 5'751/C PerfRev.:'-' DOCS

PW4ENG 72-649 SB - RECOMMENDED COMP SEAL, HPC STAGE 5 KNIFE EDGE - BORO INSPECT FRONT KE TIP FOR CRACKS Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-653/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-673/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-786/SB Rev.1 Reason for this Status This document was terminated the 20.May.1998 with implementation of the document PW4ENG 72-653/SB/1.

PW4ENG 72-650 SB - RECOMMENDED COMP SHROUD, HPC INLET THU STAGE 7 - INTRO OF ALIGNMENT PIN TACK WELDING Closed 21.Feb.2000 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 55119:00/H 8'497/C PerfRev.:'-' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-651 SB 1 OPTIONAL COMP BLADE, LPC STG 1.6 - DESIGNED AIRFOIL WITH IMPROVED CRACK RESISTANCE Closed 21.Feb.2000 This Document terminates EOD-COMP-72-31001-R00/EOD Rev.00 This Document terminates PW4ENG 72-600/SB Rev.3 This Document SUPERSEDES PW4ENG 72-651/SB Rev.- This Document terminates PW4ENG 72-665/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 33567:00/H 5'751/C PerfRev.:'1' DOCS

PW4ENG 72-652 SB 2 RECOMMENDED COMP CARRIER, DIFF CASE PLUMBING SEAL - INTRO OF SPERICAL COATED DESIGN Closed 21.Feb.2000 This Document SUPERSEDES PW4ENG 72-652/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 33567:00/H 5'751/C PerfRev.:'2' DOCS

PW4ENG 72-653 SB 1 RECOMMENDED COMP SEAL, HPC STG.5 - MODIFY TO REMOVE FRONT KE TIP TO PREVENT CRACKS Closed 19.May.1998 This Document terminates PW4ENG 72-649/SB Rev.- This Document SUPERSEDES PW4ENG 72-653/SB Rev.- This Document is terminated with implementation of PW4ENG 72-673/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'1' RECORDS

PW4ENG 72-655 SB 4 RECOMMENDED COMP BLADE, LPC STAGE 1 (FAN) - INTRO OF AIRFOIL WITH LARGER LE RADIUS Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 72-655/SB Rev.3 This Document terminates PW4ENG 72-732/SB Rev.- Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-659 SB 2 RECOMMENDED COMP LINKAGE, BELLCRANK 2.5 BLEED - MORE DURABLE BELLCRANK AND LINKAGES Closed 19.May.1998 This Document terminates PW4ENG 72-566/SB Rev.3 This Document terminates PW4ENG 72-633/SB Rev.1 This Document SUPERSEDES PW4ENG 72-659/SB Rev.1 This Document terminates PW4ENG A75-51-PT.F01/SB Rev.14 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'2' RECORDS

PW4ENG 72-660 SB 3 RECOMMENDED COMP FOLLOWER, B25 CAM - INTRO OF STEEL LINERS AND ROLLER TYPE FOLLOWER Closed 19.May.1998 This Document terminates PW4ENG 72-566/SB Rev.3 This Document terminates PW4ENG 72-633/SB Rev.1 This Document SUPERSEDES PW4ENG 72-660/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'3' RECORDS

PW4ENG 72-661 SB - RECOMMENDED COMP BEARING #1, FAILURE - REMOVE SUSPECT FAG BEARINGS FROM SERVICE Not Applicable by Serial Number

PW4ENG 72-662 SB 2 RECOMMENDED COMP BLADE, HPT STAGE 1 - W IMPROVED COOLING TO REDUCE THERMAL DISTRESS Closed 21.Feb.2000 This Document terminates PW4ENG 72-422/SB Rev.4 This Document SUPERSEDES PW4ENG 72-662/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 55119:00/H 5'751/C PerfRev.:'2' DOCS

PW4ENG 72-663 SB 3 RECOMMENDED COMP HOSE/TUBE ASSY,LP01/LP03/FM11 - INSPECT FOR LEAKAGE Open This Document SUPERSEDES PW4ENG-72-663/SB Rev.2 Perform within an unlimited threshold.

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-664 SB 2 RECOMMENDED COMP BEARING, MGB DEOILER (MB11) - MOD TO PREVENT BEARING TO SHAFT MOTION Closed 21.Feb.2000 This Document terminates PW4ENG 72-616/SB Rev.- This Document SUPERSEDES PW4ENG 72-664/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 33567:00/H 5'751/C PerfRev.:'2' DOCS

PW4ENG 72-665 SB 2 RECOMMENDED COMP BLADE, LPC STG 1.6 - ECI TO DETECT CRACKS / REPETITIVE Closed 31.Dec.1971 This Document terminates PW4ENG 72-600/SB Rev.3 This Document is terminated with implementation of PW4ENG 72-651/SB Rev.1 This Document SUPERSEDES PW4ENG 72-665/SB Rev.1 Reason for this Status This document was terminated the 22.Feb.2000 with implementation of the document PW4ENG 72-651/SB/1.

PW4ENG 72-665 SB 1 RECOMMENDED COMP BLADE, LPC STG 1.6 - ECI TO DETECT CRACKS / REPETITIVE Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-665/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-665/SB Rev.2

PW4ENG 72-665 SB - RECOMMENDED COMP BLADE, LPC STG 1.6 - ECI TO DETECT CRACKS / REPETITIVE Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-665/SB Rev.1

PW4ENG 72-666 SB - RECOMMENDED COMP STATOR, LPC - IMPROVED RUBBER AIRSEALS FOR PERFORMANCE RETENTION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-667 SB 1 RECOMMENDED COMP INLET CONE SEGMENT ASSY W/ FABRIC LINED 3 SEGMENT SEAL - INTRO OF Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 72-667/SB Rev.- Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-667 SB - RECOMMENDED COMP INLET CONE SEGMENT ASSY W/ FABRIC LINED 3 SEGMENT SEAL - INTRO OF Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-667/SB Rev.1

PW4ENG 72-668 SB - RECOMMENDED COMP SHROUD SET, HPC STG 10TH THRU 14TH - INTRO ALUMINUM BRONZE COATING Closed 20.May.2005 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'-' DOCS

PW4ENG 72-669 SB 1 OPTIONAL COMP FAIRING, INTERM. CASE STRUT - ALUMINUM RATHER THAN VITON/KEVLAR Closed 27.May.2011 This Document SUPERSEDES PW4ENG 72-669/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'1' DOCS

PW4ENG 72-670 SB 3 RECOMMENDED COMP HOSE/TUBE ASSY,LP01/LP03/FM11 - REPLACEMENT OF Open This Document terminates EOD-COMP-79-21001-R00/EOD Rev.00 This Document SUPERSEDES PW4ENG 72-670/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-746/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-671 SB - RECOMMENDED COMP CASING, FAN - INSPECT FOR TOOL MARKS AT THE DUCT SEGMENT RECESS Not Applicable by Serial Number

PW4ENG 72-672 SB - RECOMMENDED COMP BELLCRANK, ASSY B25 - MODIFY TO PREVENT INTERFERENCE WITH LPC Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-673 SB 1 OPTIONAL COMP SEAL, HPC STG.5 - NEW PART WITHOUT FRONT KE TIP TO PREVENT CRACKS Closed 20.May.2005 This Document terminates PW4ENG 72-649/SB Rev.- This Document terminates PW4ENG 72-653/SB Rev.1 This Document SUPERSEDES PW4ENG 72-673/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'1' DOCS

PW4ENG 72-674 SB 4 RECOMMENDED COMP BLADE, HPC STAGE 5 - BOROSCOPE INSPECTION OF DOVETAIL FOR CRACKING Closed 31.Dec.1971 This Document SUPERSEDES PW4ENG 72-674/SB Rev.3 This Document is terminated with implementation of PW4ENG 72-705/SB Rev.- Reason for this Status This document was terminated the 12.Jan.2004 with implementation of the document PW4ENG 72-705/SB/-.

PW4ENG 72-675 SB - RECOMMENDED COMP PLUG, BORESCOPE INNER (AP5&AP7) - WITH BAKED-ON ANTI-GALLANT COATING Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-755/SB Rev.7 This Document has been SUPERSEDED BY PW4ENG 72-757/SB Rev.5

PW4ENG 72-678 SB 2 RECOMMENDED COMP SUPPORT, BRG #1.5 - RECALL UNITS WHICH DON`T MEET RAW MTRL PROPERTIES Superseded (Not Applicable by Serial Number) This Document SUPERSEDES PW4ENG 72-678/SB Rev.1 This Document has been SUPERSEDED BY PW4ENG 72-678/SB Rev.3

PW4ENG 72-678 SB 3 RECOMMENDED COMP SUPPORT, BRG #1.5 - RECALL UNITS WHICH DON`T MEET RAW MTRL PROPERTIES Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-678/SB Rev.2

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-679 SB 3 RECOMMENDED COMP CASE, HPC FRONT - IMPROVED BURN THRU PROTECTION BY CERAMIC LAYER Closed 21.Feb.2000 This Document SUPERSEDES PW4ENG 72-679/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 55119:00/H 8'497/C PerfRev.:'3' DOCS

PW4ENG 72-680 SB - RECOMMENDED COMP CASE, ASSY INTERMEDIATE - CONVERSION FROM PH I TO PH III CONFIGURATION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-681 SB 02 RECOMMENDED COMP DIFFUSER, CASE AY - FPI AREA BETWEEN TT3 BOSS AND BRACKET BOSS (ROUND) Part-Requirem.Contr. This Document SUPERSEDES PW4ENG 72-681/SB Rev.01 This Document is terminated with implementation of PW4ENG 72-699/SB Rev.- This Document is terminated with implementation of PW4ENG 72-710/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 72-682 SB - RECOMMENDED COMP BLADE, HPC STG 9 THRU 15 - NEW LOCK AND SETSCREW FOR EASY REPLACEMENT Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-683 SB - RECOMMENDED COMP BEARING, NBR 1- REPLACEMENT OF SPECIFIC SERIAL NUMBERED BEARINGS Not Applicable by Serial Number

PW4ENG 72-684 SB - RECOMMENDED COMP SEAL, BRG #3 - INSPECT FRONT SEAL RING HOLDER FOR MICROSHRINKAGE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-685 SB 1 RECOMMENDED COMP BRACKET, SVA SUPPORT - MODIFY TO PRECLUDE AN INTERFERENCE CONDITION Open This Document SUPERSEDES PW4ENG 72-685/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-686 SB 2 RECOMMENDED COMP BLADE, HPT STG 2 - DAMPER POCKET SCC MANAGEMENT BY INSPECTION Closed 31.Dec.1971 This Document terminates PW4ENG 72-632/SB Rev.1 This Document SUPERSEDES PW4ENG 72-686/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-716/SB Rev.- This Document is terminated with implementation of PW4ENG 72-723/SB Rev.- Reason for this Status This document was terminated the 12.Jan.2004 with implementation of the document PW4ENG 72-723/SB/-.

PW4ENG 72-687 SB 1 RECOMMENDED COMP PLATE, IDENTIFICATION - NEW PLATE SHOWING VARIOUS THRUST RATINGS Open This Document SUPERSEDES PW4ENG 72-687/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-688 SB - RECOMMENDED COMP VANE, HPT STG.1 - TRAILING EDGE CUT-BACK NORMALISATION Not Applicable by Serial Number

PW4ENG 72-690 SB - RECOMMENDED COMP BRACKET, WIRING HARNESS W6 - REPLACE TO DAMPEN VIBS PREVENT W6 CHAFING Closed 11.Jan.2004 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'-' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-691 SB 2 RECOMMENDED COMP VANE, HPT STAGE 1 - WITH IMPROVED DURABILITY DUE TO INCREASE COOLING Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-691/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'2' DOCS

PW4ENG 72-693 SB 1 MANDATORY COMP DISK, HPC STG 6-7 SPACER - ONE TIME CRACK INSPECTION Closed 31.Dec.1971 This Document SUPERSEDES PW4ENG 72-693/SB Rev.- This Document is terminated with implementation of PW4ENG 72-722/SB Rev.1 Reason for this Status This document was terminated the 28.May.2011 with implementation of the document PW4ENG 72-722/SB/1.

PW4ENG 72-694 SB 2 RECOMMENDED COMP HUB, FAN - ALTERNATIVE PART FOR INCREASED COMMONALITY Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 72-694/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 72-695 SB 2 RECOMMENDED COMP BLADE, HPT STG.1 - SHORTER LENGTH ICW EXPOSED CBN TIP COATING Closed 21.Feb.2000 This Document SUPERSEDES PW4ENG 72-695/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 33567:00/H 5'751/C PerfRev.:'2' DOCS

PW4ENG 72-696 SB 1 RECOMMENDED COMP TUBE, BRG#3 BREATHER - INSPECT WELD JOINT / NUT THRUST WIRE LOCATION Open This Document SUPERSEDES PW4ENG 72-696/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-697 SB - RECOMMENDED COMP BOLTS, H-FLANGE - REPLACE TO PREVENT SC FRACTURING Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-698 SB - RECOMMENDED COMP ENGINE, FLANGE C - USE BOLTS MEETING MIN THREAD PROTRUSION REQ Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-699 SB - RECOMMENDED COMP DIFFUSER, THICKWALL CASE ASSY - REDUCE STRESS IN THE TT3 BOSS AREA Closed 20.May.2005 This Document terminates PW4ENG 72-681/SB Rev.02 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'-' DOCS

PW4ENG 72-700 SB 1 RECOMMENDED COMP BLADE, HPT STG 2 - DAMPER POCKET SCC PROTECTION BY PLATINUM ALUMINIDE Not Applicable by Serial Number This Document terminates PW4ENG 72-615/SB Rev.1 This Document SUPERSEDES PW4ENG 72-700/SB Rev.- This Document is terminated with implementation of PW4ENG 72-716/SB Rev.- This Document is terminated with implementation of PW4ENG 72-723/SB Rev.-

PW4ENG 72-701 SB - RECOMMENDED COMP HOUSING, MOF INTRODUCTION OF 7/16" STUDS TO REPLACE 3/8" STUDS Closed 11.Jan.2004 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'-' DOCS

PW4ENG 72-702 SB - RECOMMENDED COMP COMBUSTOR, CLAMP PLATE- AVAILABILITY OF CLASSIFIED SPACERS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-703 SB - OPTIONAL COMP BLADES, HPC STG 9 THRU 15 - INTRO NARROWER PLATFORM WIDTH FOR MAINT. Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-705 SB - RECOMMENDED COMP BLADE, HPC STAGE 5 WITH WIDER ROOT COATING - INDTRODUCTION OF Closed 11.Jan.2004 This Document terminates PW4ENG 72-503/SB Rev.2 This Document terminates PW4ENG 72-557/SB Rev.3 This Document terminates PW4ENG 72-617/SB Rev.1 This Document terminates PW4ENG 72-674/SB Rev.4 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'-' DOCS

PW4ENG 72-708 SB - RECOMMENDED COMP PLUG, BORESCOPE OUTER (AP5&AP7) - NEW KEY WASHER TO IMPROVE LOCKING Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-755/SB Rev.7

PW4ENG 72-709 SB 3 RECOMMENDED COMP TUBE ASSY, LP09 - INCORP OF IMPROVED CLAMPING Closed 27.May.2011 This Document SUPERSEDES PW4ENG 72-709/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'3' DOCS

PW4ENG 72-710 SB - RECOMMENDED COMP DIFFUSER, THICKWALL CASE ASSY - REMOVE CRACKS POROSITY Open (Next Shop Visit) This Document terminates PW4ENG 72-681/SB Rev.02 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-712 SB 2 RECOMMENDED COMP BLADE, HPT STAGE 1 - INCREASED LENGTH TO RECOVER PERF. LOSS Closed 20.May.2005 This Document SUPERSEDES PW4ENG-72-712/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'2' DOCS

PW4ENG 72-713 SB - RECOMMENDED COMP BOLTS, VSV SYSTEM - NEW T-BOLTS TO IMPROVE STRESS CORROSION RESISTANCE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-714 SB 2 RECOMMENDED COMP CASE, HPC INNER REAR - MORE WEAR RESISTANT REAR HOOK MATERIAL AD: Closed 31.Dec.1971 FAA2002-21-10 This Document SUPERSEDES PW4ENG 72-714/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-755/SB Rev.7 Reason for this Status This document was terminated the 21.May.2005 with implementation of the document PW4ENG 72-755/SB/7.

PW4ENG 72-715 SB - RECOMMENDED COMP AIRFOILS, LPT STG.3 THU 5 - INSPECT FOR AND REMOVE 100" MODEL PARTS Not Applicable by Serial Number

PW4ENG 72-716 SB - RECOMMENDED COMP BLADE, HPT STG 2 - DAMPER POCKET SCC RESISTANCE IMPROVED BY 1480 MTRL Closed 20.May.2005 This Document terminates PW4ENG 72-632/SB Rev.1 This Document terminates PW4ENG 72-686/SB Rev.2 This Document terminates PW4ENG 72-700/SB Rev.1 This Document terminates PW4ENG 72-723/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'-' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-717 SB 1 RECOMMENDED COMP SEAL, SEGMENT LPT STG.3/4 - APPROVAL TO INSTALL 100" HARDWARE Open This Document SUPERSEDES PW4ENG 72-717/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-718 SB 1 RECOMMENDED COMP SEAL, OUTER LPT STG 3-4 - MOD TO NEW HONEYCOMB CONFIG Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-718/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-718/SB Rev.2

PW4ENG 72-718 SB 2 RECOMMENDED COMP SEAL, OUTER LPT STG 3-4 - MOD TO NEW HONEYCOMB CONFIG Open This Document SUPERSEDES PW4ENG 72-718/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-720 SB - MANDATORY COMP BRACKET, DRAIN LINE - MODIFICATION TO ACCOMODATE REVISED EBU Not Applicable by Serial Number HARDWARE

PW4ENG 72-721 SB 3 MANDATORY COMP SEAL, BRUSH AND SUPPORT HPT STAGE 1 - ELIMINATION OF TAPERED SURFACE Open FAA2012-18-03 STEP (E)(1) This Document SUPERSEDES PW4ENG 72-721/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-721 SB 2 MANDATORY COMP SEAL, BRUSH AND SUPPORT HPT STAGE 1 - ELIMINATION OF TAPERED SURFACE Superseded (Cancelled) FAA2012-18-03 STEP (E)(1) This Document SUPERSEDES PW4ENG 72-721/SB Rev.1 This Document has been SUPERSEDED BY PW4ENG 72-721/SB Rev.3 Reason for this Status Manually deassigned after Document Cancelled or Superseded

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-721 SB 1 OPTIONAL COMP SEAL, BRUSH AND SUPPORT HPT STAGE 1 - ELIMINATION OF TAPERED SURFACE Superseded (Not Applicable by Serial Number) This Document SUPERSEDES PW4ENG 72-721/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-721/SB Rev.2

PW4ENG 72-722 SB 1 MANDATORY COMP DISK, HPC STG 6-7 SPACER - REPETATIVE CRACK INSPECTION AD: FAA2002-12-15 Repetitive This Document terminates PW4ENG 72-693/SB Rev.1 This Document SUPERSEDES PW4ENG 72-722/SB Rev.- This Document is terminated with implementation of PW4ENG 72-786/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document 14'381/C Interval(F):2200/C Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'1' DOCS

PW4ENG 72-723 SB - RECOMMENDED COMP BLADE, HPT STG 2 - DAMPER POCKET SCC PROTECTION BY PWA 36330 Closed 11.Jan.2004 This Document terminates PW4ENG 72-615/SB Rev.1 This Document terminates PW4ENG 72-632/SB Rev.1 This Document terminates PW4ENG 72-686/SB Rev.2 This Document terminates PW4ENG 72-700/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-716/SB Rev.- This Document is terminated with implementation of PW4ENG 72-763/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'-' DOCS

PW4ENG 72-724 SB - RECOMMENDED COMP SEAL, HPT 1 OUTER - CHECK FOR CRACKS DUE IMPROPER REWORK PER SB 72-314 Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-730 SB 1 RECOMMENDED COMP DUCT, HPT COOLING (TOBI) - INSPECT FOR CRACKS AT VANE CAVITIES Open (Next Shop Visit) This Document SUPERSEDES PW4ENG 72-730/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-736 SB 1 RECOMMENDED COMP DISK, HPT STG 1&2 - FPI INSPECTION FOR CRACKS AT SPEC AREAS (FAA EII) Open (Next Shop Visit) This Document SUPERSEDES PW4ENG 72-736/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-737 SB - INFORMATION COMP CONVERSION, MODEL - FROM BOEING PH-III CONFIG TO AIRBUS PH-III CONFIG Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-739 SB 1 RECOMMENDED COMP BRACKET, HEATSHIELD OILTANK - REPLACE TO INCR. CLEARANCE WITH ECS DUCT Open This Document terminates PW4ENG 79-74/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-740 SB 1 RECOMMENDED COMP CASE, FAN CONTAINMENT - INSPECT FOR CRACKS AT FLANGES A, A1 AND B Open (Next Shop Visit) This Document SUPERSEDES PW4ENG 72-740/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-741 SB - RECOMMENDED COMP VANE,INLET HPC - PRECLUDE PIN WEAR BY TIGHTER PROFILE TOLERANCE Not Applicable by Serial Number

PW4ENG 72-742 SB - OPTIONAL COMP VANE, HPT STG 2 - NEAR NET CASTING PRODUCED Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-745 SB 2 RECOMMENDED COMP BLADE, HPC STG 6 - DOVETAIL INSPECTION (BSI) FOR CRACKING Repetitive This Document SUPERSEDES PW4ENG 72-745/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-786/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'2' DOCS

PW4ENG 72-746 SB - RECOMMENDED COMP HOSE, ASSY CP11 & CR13 - IMPROVED DURABILITY Open This Document terminates EOD-COMP-79-21001-R00/EOD Rev.00 This Document terminates PW4ENG 72-670/SB Rev.3 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-748 SB 2 RECOMMENDED COMP NUT, BRG#2 OUTER RACE RETAINING - INCR. FINAL ANGLE OF TURN INCORP. Open (Next Shop Visit) This Document SUPERSEDES PW4ENG 72-748/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-748 SB - RECOMMENDED COMP NUT, BRG#2 OUTER RACE RETAINING - INCR. FINAL ANGLE OF TURN INCORP. Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-748/SB Rev.1

PW4ENG 72-748 SB 1 RECOMMENDED COMP NUT, BRG#2 OUTER RACE RETAINING - INCR. FINAL ANGLE OF TURN INCORP. Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-748/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-748/SB Rev.2

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-749 SB 1 RECOMMENDED COMP CASING, HPC INNER REAR - MID HOOK WITH IMPROVED HARDNESS CAPABILITY Open This Document SUPERSEDES PW4ENG 72-749/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-750 SB 4 RECOMMENDED COMP DRUM, HPC REAR ROTOR - BALANCE WEIGHT SCALLOP CONFIG CHG FOR FULL LIFE Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-750/SB Rev.3

PW4ENG 72-751 SB - OPTIONAL COMP ROTOR, DRUM - LPC ONE-PIECE FORGED OPTION TO REPLACE EB WELDED VERSION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-752 SB - RECOMMENDED COMP CASING, HPC H-FLANGE - APPLICATION OF LONGER BOLTS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-753 SB 1 RECOMMENDED COMP DIFFUSER, THINWALL CASE AY - FLUORESCENT PENETRANT INSPECTION Part-Requirem.Contr. This Document SUPERSEDES PW4ENG 72-753/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 72-754 SB - RECOMMENDED COMP CASING, FAN OUTER - SCALOPS MODIFICATION AND CORROSION PROTECTION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-755 SB 7 MANDATORY COMP HPC RING CASE COMPRESSOR CONFIG, BOEING - INTRO OF FAA 2003-19-15 Closed 20.May.2005 This Document SUPERSEDES PW4ENG 72-675/SB Rev.- This Document SUPERSEDES PW4ENG 72-708/SB Rev.- This Document terminates PW4ENG 72-714/SB Rev.2 This Document terminates PW4ENG 73-198/SB Rev.1 This Document CANCELS PW4ENG-72-755/SB Rev.5 This Document terminates SI 49F-96/SB Rev.00 This Document terminates SI 7F-96/SB Rev.00 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'7' DOCS

PW4ENG 72-758 SB 1 OPTIONAL COMP ROTOR HPC FRONT DRUM PHASE 3 CONFIG, USE IN PHASE I ENGINE - INTRO OF Open This Document SUPERSEDES PW4ENG 72-758/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-758 SB - RECOMMENDED COMP ROTOR HPC FRONT DRUMPHASE 3 CONFIG, USE IN PHASE I ENGINE - INTRO OF Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-758/SB Rev.1

PW4ENG 72-760 SB - RECOMMENDED COMP VANE, HPC VARIABLE - MORE DURABLE BEARING WASHER Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-761 SB 1 RECOMMENDED COMP PLATE, COMBUSTOR GUIDE - REDESIGN TO LOWER PRODUCTION/MAINTENANCE Open COST Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-762 SB 2 RECOMMENDED COMP TUBE, BRG#3 OIL PRESS - INSPECT FOR WELD CONTAMINATION CRACKS Closed 27.May.2011 This Document SUPERSEDES PW4ENG 72-762/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'2' DOCS

PW4ENG 72-763 SB 1 RECOMMENDED COMP BLADE, HPT STAGE 2 - WITH PWA36330 TO PREVENT DAMPER POCKET SCC Closed 20.May.2005 This Document terminates PW4ENG 72-632/SB Rev.- This Document terminates PW4ENG 72-686/SB Rev.- This Document terminates PW4ENG 72-700/SB Rev.- This Document terminates PW4ENG 72-723/SB Rev.- This Document SUPERSEDES PW4ENG 72-763/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'1' DOCS

PW4ENG 72-763 SB - RECOMMENDED COMP BLADE, HPT STAGE 2 - WITH PWA36330 TO PREVENT DAMPER POCKET SCC Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-763/SB Rev.1

PW4ENG 72-764 SB - RECOMMENDED COMP CASE, HPC RCC - NEW MATERIAL SPACER INTRODUCTION Closed 20.May.2005 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 20.May.2005 55119:00/H 8'497/C PerfRev.:'-' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-767 SB 2 RECOMMENDED COMP FAIRING, STRUT INTERMEDIATE CASE - INSPECT FOR MISSING OR LOOSE RIVETS Closed 31.Dec.1971 This Document SUPERSEDES PW4ENG 72-767/SB Rev.- This Document SUPERSEDES PW4ENG 72-767/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-778/SB Rev.- Reason for this Status This document was terminated the 28.May.2011 with implementation of the document PW4ENG 72-778/SB/-.

PW4ENG 72-768 SB 1 RECOMMENDED COMP BEARING, BRG#1 - INCREASE DURABILITY DUE TO IMPROVED CAGE RIDING LAND Open This Document SUPERSEDES PW4ENG 72-768/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-770 SB - RECOMMENDED COMP BOLTS, E-FLANGE - REPLACE TO PREVENT SC FRACTURING Closed 27.May.2011 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'-' DOCS

PW4ENG 72-771 SB - RECOMMENDED COMP SEAL ASSY, BRG#3 - MODI OF THE REDUCE CLOGGING AND SLOT WEAR Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-771/SB Rev.1

PW4ENG 72-771 SB 1 RECOMMENDED COMP SEAL ASSY, BRG#3 - MODI OF THE REDUCE CLOGGING AND SLOT WEAR Closed 27.May.2011 This Document SUPERSEDES PW4ENG 72-771/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'1' DOCS

PW4ENG 72-772 SB - RECOMMENDED COMP BLADE, HPC STAGE 5 - DOVETAIL INSPECTION (BSI) FOR CRACKING Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-772/SB Rev.1

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-772 SB 1 RECOMMENDED COMP BLADE, HPC STAGE 5 - DOVETAIL INSPECTION (BSI) FOR CRACKING Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-772/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-772/SB Rev.2

PW4ENG 72-772 SB 2 RECOMMENDED COMP BLADE, HPC STAGE 5 - DOVETAIL INSPECTION (BSI) FOR CRACKING Repetitive This Document SUPERSEDES PW4ENG 72-772/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document 12'401/C Interval(F):220/C Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'2' DOCS

PW4ENG 72-773 SB - RECOMMENDED COMP HOSE AND TUBE, CP11/CR13/LP01/LP03 - CHECK FOR DAMAGE AND LEAKAGE Repetitive (Next Shop Visit) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'-' DOCS

PW4ENG 72-774 SB - RECOMMENDED COMP SEAL, CARBON BRG#1.5 / 2 - REJECTION OF CERTAIN CARBON SEAL ELEMENT Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-775 SB - RECOMMENDED COMP BEARING, NBR 1 - MODIFY TO IMPROVED DURABILITY Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-776 SB - RECOMMENDED COMP SLEEVE, VSV BEARING - NEW MATERIAL TO IMPROVED DURABILITY Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-777 SB - OPTIONAL COMP TOWERSHAFT, UPR BRG (UTS-2) -NEW BEARING OPTION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-778 SB - RECOMMENDED COMP FAIRING, INTERM CASE STRUT - IMPROVED ATTACHMENT (ALU PANELS ONLY) Closed 27.May.2011 This Document terminates PW4ENG 72-767/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'-' DOCS

PW4ENG 72-779 SB - OPTIONAL COMP SUPPORT, BRG.#1.5 - ALLOW ASSY WITH IMPROVED ONE BLADE OUT CAPABILITY Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-780 SB - RECOMMENDED COMP VANE, HPT STAGE 2 - INSPECT FOR AIRFOIL CRACKING AND BURNING Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY PW4ENG 72-780/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-788/SB Rev.0

PW4ENG 72-780 SB 1 RECOMMENDED COMP VANE, HPT STAGE 2 - INSPECT FOR AIRFOIL CRACKING AND BURNING Superseded (Not Applicable by Serial Number) This Document SUPERSEDES PW4ENG 72-780/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-780/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-788/SB Rev.- This Document is terminated with implementation of PW4ENG 72-788/SB Rev.0

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-780 SB 2 RECOMMENDED COMP VANE, HPT STAGE 2 - INSPECT FOR AIRFOIL CRACKING AND BURNING Repetitive This Document SUPERSEDES PW4ENG 72-780/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-788/SB Rev.- This Document is terminated with implementation of PW4ENG 72-788/SB Rev.0 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'2' DOCS

PW4ENG 72-781 SB 01 OPTIONAL COMP SHROUD, LPC STG 1.6/2/3 - PREMOLDED SHROUD TO PRECLUDE DISBONDS Open This Document SUPERSEDES PW4ENG 72-781/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-782 SB 1 RECOMMENDED COMP DISK, HPC STAGE 12 CRACK REMOVAL AND PREVENTION - MODIFICATION FOR Open This Document SUPERSEDES PW4ENG 72-782/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-782 SB - RECOMMENDED COMP DISK, HPC STAGE 12 CRACK REMOVAL AND PREVENTION - MODIFICATION FOR Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-782/SB Rev.1

PW4ENG 72-783 SB - RECOMMENDED COMP HEATSHIELD, AP-5 - MODIFY TO PRECLUDE INTERFERENCE Closed 27.May.2011 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 45448:00/H 12'181/C PerfRev.:'-' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-784 SB 1 RECOMMENDED COMP TUBE ASSY, LP09 - INSPECT FOR CORRECT INSTL. OF IMPROVED CLAMPING Closed 27.May.2011 This Document SUPERSEDES PW4ENG 72-784/SB Rev.0 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'1' DOCS

PW4ENG 72-786 SB - RECOMMENDED COMP DISK, HPC STAGE 5 - WITH 41 BLADE SLOTS TO ELIMINATE AIRFOIL FRACTURES Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-786/SB Rev.1

PW4ENG 72-786 SB 1 MANDATORY COMP DISK, HPC STAGE 5 - WITH 41 BLADE SLOTS TO ELIMINATE AIRFOIL FRACTURES AD: Open FAA2002-12-15 This Document terminates EOD-COMP-72-35001-R00/EOD Rev.00 This Document terminates EOD-COMP-72-35002-R00/EOD Rev.00 This Document terminates EOD-COMP-72-35003-R00/EOD Rev.00 This Document terminates PW4ENG 72-649/SB Rev.- This Document terminates PW4ENG 72-722/SB Rev.1 This Document terminates PW4ENG 72-745/SB Rev.2 This Document SUPERSEDES PW4ENG 72-786/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-787 SB - OPTIONAL COMP CONVERSION, MODEL - BOEING PH-III CONFIG TO MD11 PH-III CONFIG Information Only Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-788 SB 0 RECOMMENDED COMP VANE, HPT STAGE 2 - WITH IMPROVED COOLING TO REDUCE THERMAL DISTESS Open This Document terminates PW4ENG 72-780/SB Rev.- This Document terminates PW4ENG 72-780/SB Rev.1 This Document terminates PW4ENG 72-780/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-789 SB - RECOMMENDED COMP SUPPORT, BRG#1.5 - DUPLICATE SERIAL NUMBER ELIMINATION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-790 SB 1 RECOMMENDED COMP SEAL, BRG#3 - IMPROVED SEAL TO PRECLUDE OIL LOSS AND HPT DISTRESS Closed 27.May.2011 This Document SUPERSEDES PW4ENG 72-790/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'1' DOCS

PW4ENG 72-790 SB - RECOMMENDED COMP SEAL, BRG#3 - IMPROVED SEAL TO PRECLUDE OIL LOSS AND HPT DISTRESS Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-790/SB Rev.1

PW4ENG 72-791 SB 1 RECOMMENDED COMP SEAL ASSEMBLY, GEARBOX - INTRO OF SEAL WITH IMPROVED DURABILITY Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-791/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-791/SB Rev.2

PW4ENG 72-791 SB 2 RECOMMENDED COMP SEAL ASSEMBLY, GEARBOX - INTRO OF SEAL WITH IMPROVED DURABILITY Closed 27.May.2011 This Document SUPERSEDES PW4ENG 72-791/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 8'497/C PerfRev.:'2' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-791 SB - RECOMMENDED COMP SEAL ASSEMBLY, GEARBOX - INTRO OF SEAL WITH IMPROVED DURABILITY Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-791/SB Rev.1

PW4ENG 72-792 SB - RECOMMENDED COMP INLET CONE SEGMENT ASSY W/ NEW SEAL AND IMPROVED RETENTION - INTRO OF Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 72-793 SB - INFORMATION COMP PARTS, PHASE III - PERMISSION TO USE CONVERTED PARTS IN PRODUCTION ENG Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 72-794 SB - OPTIONAL COMP BLADE, HPT STAGE 2 OUTER AIRSEAL GASKET OPTION - INTRODUCTION OF Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-795 SB - OPTIONAL COMP TURBINE, HPT - ADVANTAGE PERFORMANCE UPGRADE PROGRAM (APU) Superseded (Superseded) This Document terminates PW4ENG 72-422/SB Rev.4 This Document has been SUPERSEDED BY PW4ENG 72-795/SB Rev.1

PW4ENG 72-795 SB 1 RECOMMENDED COMP TURBINE, HPT - ADVANTAGE PERFORMANCE UPGRADE PROGRAM (APU) Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-795/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-795/SB Rev.2

PW4ENG 72-796 SB - MANDATORY COMP DRUM, HPC REAR - FPI FOR CRACKS AT LOCKING SLOTS STAGE 13 THRU 15 AD Open (Next Shop Visit) FAA2012-18-17, AMENDMENT 39-17194 This Document is terminated with implementation of PW4ENG 72-817/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-797 SB - RECOMMENDED COMP CASE, LPT - APPROVAL TO USE -3CN CASE AT PRODUCTION -3 ENGINES Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-798 SB - RECOMMENDED COMP VANE, LPT STG.4 - INSPECTION FOR CASTINGS WITH NON-CONFORMING RADIUS Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-798/SB Rev.1

PW4ENG 72-798 SB 2 RECOMMENDED COMP VANE, LPT STG.4 - INSPECTION FOR CASTINGS WITH NON-CONFORMING RADIUS Closed 27.May.2011 This Document SUPERSEDES PW4ENG 72-798/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'2' DOCS

PW4ENG 72-798 SB 1 RECOMMENDED COMP VANE, LPT STG.4 - INSPECTION FOR CASTINGS WITH NON-CONFORMING RADIUS Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-798/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-798/SB Rev.2

PW4ENG 72-799 SB 2 MANDATORY COMP DISK, HPC STG10 ANTI-VORTEX (AVT)SHELF -CHECK SHELF SLOTS FOR CRACKS Repetitive FAA2010-24-14 / AMENDMENT 39-16533 This Document SUPERSEDES PW4ENG 72-799/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-801/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document Perform initially before(F) 10697/C / 17'897/C Interval(F):7200/C Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C Was due at: 10'697/C PerfRev.:'2' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-799 SB 1 MANDATORY COMP DISK, HPC STG10 ANTI-VORTEX (AVT)SHELF -CHECK SHELF SLOTS FOR CRACKS Superseded (Not Applicable by FAA2010-24-14 / AMENDMENT 39-16533 Serial Number) This Document SUPERSEDES PW4ENG 72-799/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-799/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-801/SB Rev.1

PW4ENG 72-799 SB - MANDATORY COMP DISK, HPC STG10 ANTI-VORTEX (AVT)SHELF -CHECK SHELF SLOTS FOR CRACKS Superseded (Superseded) FAA2010-24-14 / AMENDMENT 39-16533 This Document has been SUPERSEDED BY PW4ENG 72-799/SB Rev.1 This Document is terminated with implementation of PW4ENG 72-801/SB Rev.-

PW4ENG 72-800 SB - OPTIONAL COMP STATOR, HPC STG.8 THU 14 - WITH IMPROVED AIRFOIL SURFACE FINISH (IASF) Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-800/SB Rev.1

PW4ENG 72-800 SB 1 OPTIONAL COMP STATOR, HPC STG.8 THU 14 - WITH IMPROVED AIRFOIL SURFACE FINISH (IASF) Open This Document SUPERSEDES PW4ENG 72-800/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-801 SB - MANDATORY COMP STATOR, HPC STG.9 - PRE-RCC SLOT CONFIG TO PRECLUDE AVT SHELF CRACKING Superseded (Superseded) FAA2010-24-14 / AMENDMENT 39-16533 This Document terminates PW4ENG 72-799/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-801/SB Rev.1

PW4ENG 72-801 SB 1 MANDATORY COMP STATOR, HPC STG.9 - PRE-RCC SLOT CONFIG TO PRECLUDE AVT SHELF CRACKING Superseded (Superseded) FAA2010-24-14 / AMENDMENT 39-16533 This Document terminates PW4ENG 72-799/SB Rev.1 This Document terminates PW4ENG 72-799/SB Rev.2 This Document SUPERSEDES PW4ENG 72-801/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-801/SB Rev.2

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-801 SB 2 MANDATORY COMP STATOR, HPC STG.9 - PRE-RCC SLOT CONFIG TO PRECLUDE AVT SHELF CRACKING Open FAA2010-24-14 / AMENDMENT 39-16533 This Document SUPERSEDES PW4ENG 72-801/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-802 SB - OPTIONAL COMP HOUSING, MGB - IMPROVED OIL DISTRIBUTION TO PREVENT CARBON SEAL COKING Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-803 SB - RECOMMENDED COMP OIL PUMP, STRAINER AY - REDESIGN TO PREVENT PUMP DAMAGE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-804 SB - RECOMMENDED COMP VANE, LPT STG.4 - INSPECT FOR AND REMOVE NON-CONFORMING VANE CLUSTERS Repetitive (Next Shop Visit) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'-' DOCS

PW4ENG 72-805 SB - OPTIONAL COMP BLADES, HPC STG.9-STG.15 - PLATFORM WIDTH CHANGE DUE TO EDGE WEAR Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-806 SB 1 RECOMMENDED COMP HUB, HPT STG.2 - THE ADVANTAGE-70 DESIGN INTRODUCTION Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-806/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-806/SB Rev.2

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-806 SB - RECOMMENDED COMP HUB, HPT STG.2 - THE ADVANTAGE-70 DESIGN INTRODUCTION Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-806/SB Rev.1

PW4ENG 72-806 SB 2 RECOMMENDED COMP HUB, HPT STG.2 - THE ADVANTAGE-70 DESIGN INTRODUCTION Open This Document SUPERSEDES PW4ENG 72-806/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-807 SB - RECOMMENDED COMP VANE, LPT STG.5 - INCORPORATIN INTEGRAL ANTI-ROTATION LOCKS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-808 SB - OPTIONAL COMP VANE, HPT STG.1 - EXPANDED MODEL APPLICATION FOR PN 53K081 Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-809 SB - RECOMMENDED COMP DISK, HPC STG10 ANTI-VORTEX (AVT)SHELF - SLOTS CRACK INSP. ONE TIME Not Applicable by Serial Number

PW4ENG 72-810 SB - RECOMMENDED COMP BEARING, #3 - REMOVED SUSPECT UNITS FROM SERVICE Open (Next Shop Visit) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Interval(F):0/C or 0/D or 0/H or 0/ID

PW4ENG 72-811 SB - INFORMATION COMP DECAL, PATENT - ELIMINATION OF THE PATENT DECAL Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-812 SB - RECOMMENDED COMP SEAL, ROTATING HPT STG.1/STG.2 - REDUCED LIFE LIMIT MANAGEMENT PLAN Part-Requirem.Contr. Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-813 SB - RECOMMENDED COMP HEAT SHIELD, BRG#3 TUBE ASSY - PREVENT LOSS BY NEW SHIELD MATERIAL Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-814 SB - RECOMMENDED COMP TUBE, HPC STG.9 BLEED- MOD TO REDUCE 10TH STAGE DISK AVT SHELF WEAR Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-814/SB Rev.1

PW4ENG 72-814 SB 1 RECOMMENDED COMP TUBE, HPC STG.9 BLEED- MOD TO REDUCE 10TH STAGE DISK AVT SHELF WEAR Open This Document SUPERSEDES PW4ENG 72-814/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-815 SB 3 OPTIONAL COMP BLADES & VANES, HPC ALL STAGES - INTRO OF POLISHED SURFACE FINISH Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 72-815/SB Rev.2

PW4ENG 72-815 SB 2 OPTIONAL COMP BLADES & VANES, HPC ALL STAGES - INTRO OF POLISHED SURFACE FINISH Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-815/SB Rev.1 This Document has been SUPERSEDED BY PW4ENG 72-815/SB Rev.3

PW4ENG 72-815 SB 1 OPTIONAL COMP BLADES & VANES, HPC ALL STAGES - INTRO OF POLISHED SURFACE FINISH Superseded (Superseded) This Document SUPERSEDES PW4ENG 72-815/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-815/SB Rev.2

PW4ENG 72-815 SB - OPTIONAL COMP BLADES & VANES, HPC ALL STAGES - INTRO OF POLISHED SURFACE FINISH Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-815/SB Rev.1

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-816 SB 1 RECOMMENDED COMP DRUM, HPC REAR ROTOR ASSY - NEW LADDER SEAL AND SHOT PEEN SPEC (TMF) AD Superseded (Superseded) FAA2012-18-17, AMENDMENT 39-17194 This Document SUPERSEDES PW4ENG 72-816/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 72-816/SB Rev.2 This Document is terminated with implementation of PW4ENG 72-817/SB Rev.-

PW4ENG 72-816 SB 2 MANDATORY COMP DRUM, HPC REAR ROTOR ASSY - NEW LADDER SEAL AND SHOT PEEN SPEC (TMF) AD Open FAA2012-18-17, AMENDMENT 39-17194 This Document SUPERSEDES PW4ENG 72-816/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-816 SB - RECOMMENDED COMP DRUM, HPC REAR ROTOR ASSY - NEW LADDER SEAL AND SHOT PEEN SPEC (TMF) Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-816/SB Rev.1

PW4ENG 72-817 SB - OPTIONAL COMP DRUM, HPC REAR ROTOR ASSY - IMPROVED STG 15 AND 15 BLADE LOCKS (TMF) AD Open FAA2012-18-17, AMENDMENT 39-17194 This Document terminates PW4ENG 72-796/SB Rev.- This Document terminates PW4ENG 72-816/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-818 SB - OPTIONAL COMP HUB, HPT STG.1 - POST SB 72-795 COMMON TO ALL -3 MODELS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-819 SB - RECOMMENDED COMP STATOR, LPC STG.4 - INCORPORATE A BOLT LOCKING FEATURE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-820 SB 1 RECOMMENDED COMP SEAL, BRG#1.5 - IMPROVE DURABILITY TO PREVENT FUMES IN CABIN Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY PW4ENG 72-820/SB Rev.2

PW4ENG 72-820 SB 2 RECOMMENDED COMP SEAL, BRG#1.5 - IMPROVE DURABILITY TO PREVENT FUMES IN CABIN Open This Document SUPERSEDES PW4ENG 72-820/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-821 SB - MANDATORY COMP HUB, HPT STAGE 1 - NEW [REDUCED] LIFE LIMIT AD FAA2012-16-01, AMENDMENT Superseded (Superseded) 39-17148 This Document has been SUPERSEDED BY PW4ENG 72-821/SB Rev.1

PW4ENG 72-821 SB 2 MANDATORY COMP HUB, HPT STAGE 1 - NEW [REDUCED] LIFE LIMIT AD FAA2012-16-01, AMENDMENT Part-Requirem.Contr. 39-17148 This Document SUPERSEDES PW4ENG 72-821/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 72-823 SB - OPTIONAL COMP HUB, HPT STG.1 - COMMON TO ALL PW4000 (-94) Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 72-824 SB - RECOMMENDED COMP SEAL, RING BRG #1/#2 - NEW DESIGN TO IMPROVE COMMONALITY Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-824/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-824 SB 1 RECOMMENDED COMP SEAL, RING BRG #1/#2 - NEW DESIGN TO IMPROVE COMMONALITY Open This Document SUPERSEDES PW4ENG 72-824/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-825 SB - OPTIONAL COMP COVER, MGB - ACCOMMODATE A CHANGED IDGS SYSTEM Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-826 SB - OPTIONAL COMP VANE, LPT STG.4 - IMPROVED DURABILITY AND CORROSION RESISTANCE Not Applicable by Serial Number

PW4ENG 72-827 SB - OPTIONAL COMP VANE, LPT STG.4 - MANUFACTURED FROM MORE DURABLE MATERIAL [OPT] Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-828 SB - RECOMMENDED COMP HUB, HPT STG.1 - POST SB 72-795 COMMON TO ALL MODELS Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 72-829 SB - OPTIONAL COMP COMBUSTOR, FLOAT WALL - INTRO WASPALOY NUTS TO REDUCE NUT LIBERATION Not Applicable Reason for this Status AUTO ASSIGNED

PW4ENG 72-830 SB - OPTIONAL COMP SEAL, LPT STG.4 INNER AIR - MODIFY TO PREVENT KNIFE EDGE CRACKING Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-831 SB - OPTIONAL COMP LPT, P-FLANGE - NEW BOLTS AND SPACERS TO IMPROVE FAILURE CONTAINMENT Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 72-832 SB - OPTIONAL COMP MGB, BEARINGS - IMPROVED SCREW RETENTION FOR MB16, MB17 AND MB18 Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 72-832/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-832 SB 1 RECOMMENDED COMP MGB, BEARINGS - IMPROVED SCREW RETENTION FOR MB16, MB17 AND MB18 Open This Document SUPERSEDES PW4ENG 72-832/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 72-833 SB - RECOMMENDED COMP DISK, HPC STG10 WEB - REPETITIVE NDT INSPECTIONS FOR CRACKS Open (Next Shop Visit) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Interval(F):0/H or 0/C or 0/D or 0/ID

PW4ENG 72-834 SB - OPTIONAL COMP DISK, LPC STG.2 - REMOVAL OF SHARP EDGES IN RUN OUT AREA Open (Next Shop Visit) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Interval(F):0/H or 0/C or 0/D or 0/ID

PW4ENG 72-835 SB - OPTIONAL COMP SHROUD, VARIABLE STATOR VANE - INTRODUCTION OF NEW BOLTS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-100 SB - RECOMMENDED COMP HARNESS, W3 BRACKET - REWORK TO PREVENT INTERFERENCE WITH BLEED DUCT Not Applicable by Serial Number

PW4ENG 73-104 SB 2 RECOMMENDED COMP PUMP, FUEL - FEATURING A STANDARD STUD AND NUT FOR THE FILTER COVER Information Only Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-106 SB 2 RECOMMENDED COMP TUBE, PT4.95 SENSE (AS01 & AS41) - INTRO OF THE PREVENT FRACTURING Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 73-107 SB - RECOMMENDED COMP HARNESS, W1 COVER - FEATURING IMPROVED CLEARANCE WITH PB LINE Not Applicable by Serial Number

PW4ENG 73-109 SB 1 MANDATORY COMP FADEC, SOFTWARE - VERSION SCN07B/Y (BOEING) Information Only This Document is terminated with implementation of 5-A-73-19/CMP Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 73-111 SB 2 MANDATORY COMP HARNESS, W3/W4/W5 - INTRO OF STAINLESS STEEL CONNECTOR BACKSHELLS Closed 25.Sep.1992 This Document terminates PW4ENG A75-51-PT.H02/SB Rev.14 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA 25.Sep.1992 6531:00/H 1'216/C SHOPRECOR PerfRev.:'2' DS

PW4ENG 73-112 SB - RECOMMENDED COMP CONTROL, SUPPLEMENTAL - MODIFIED CLNG FINS TO IMPR. NACELLE CLEARANCE Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 73-113 SB 1 RECOMMENDED COMP HARNESS, ASSY W4/W5 - ADD LOCKWIRE TO CONNECTORS/PREVENT Not Applicable by Serial Number DISENGAGEMENT

PW4ENG 73-114 SB 2 RECOMMENDED COMP TUBE, ASSY [AS04] - INTRODUCTION OF BRAZED FITTINGS Open This Document SUPERSEDES PW4ENG 73-114/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-115 SB - RECOMMENDED COMP HARNESS, ASSY W2 - INCREASED ELECTRICAL LOAD CARRYING CAPACITY Not Applicable by Serial Number

PW4ENG 73-117 SB - RECOMMENDED COMP FMU, SCHEDULE - RECALIBRATE TO AN INCREASED METERED FUEL FLOW Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 73-118 SB 4 RECOMMENDED COMP HARNESS, W3/W5 - NEW TERMINAL LUG CONNECTORS Not Applicable by Serial Number This Document terminates PW4ENG A75-51-PT.H04/SB Rev.14

PW4ENG 73-120 SB 1 RECOMMENDED COMP SCU, SOFTWARE - VERSION SCN2C LOWERED N2 THRESHOLD FOR FUEL OFF Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 73-127 SB 3 RECOMMENDED COMP - Open This Document SUPERSEDES PW4ENG 73-127/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-129 SB 2 MANDATORY COMP FADEC, MANIFOLD AY (PB) - MODIFY TO PRECLUDE INTERNAL ICE BUILD UP Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 73-130 SB - MANDATORY COMP PUMP, FUEL FILTER - INSPECT FOR SUSPECT FILTER ELEMENTS AND REPLACE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-131 SB 1 MANDATORY COMP FADEC, SOFTWARE - VERSION SCN08A/AC (BOEING) Information Only Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-133 SB 1 RECOMMENDED COMP TUBE ASSY, FM08 - INCREASED LENGTH AND NEW SEAT TO PRECLUDE DAMAGE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-134 SB 1 RECOMMENDED COMP HARNESS, ALL - STAINLESS STEEL BACKSHELLS AGAINST VIBRATION DAMAGE Open PT.A This Document SUPERSEDES PW4ENG 73-134/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-134 PT.B SB 1 RECOMMENDED COMP TRANSMITTER, FUEL FLOW - BOEING STANDARD ATTACHMENT BOLTS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-135 SB 1 RECOMMENDED COMP BRACKET, CABLE ASSEMBLY - REPL. TO CREATE CLEARANCE WITH AIRFRAME TUBE Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 73-135/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'1' RECORDS

PW4ENG 73-136 SB 1 MANDATORY COMP MANIFOLD, BURNER PRESS AS23 - ADD INSULATION TO PREVENT INTERNAL ICE Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'1' RECORDS

PW4ENG 73-137 SB 2 RECOMMENDED COMP MANIFOLD ASSY, PB SENSING - APPLY INSULATION & WATERTRAP AGAINST ICING Not Applicable by Serial Number

PW4ENG 73-138 SB - RECOMMENDED COMP STATOR, PMA - REPLACE DUE TO LOOSE STATOR WINDING TOP STICKS Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-140 SB - RECOMMENDED COMP HARNESS, WIRING W1 THRU W5 - STANDARD INSTALLATION CONFIGURATION Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'-' RECORDS

PW4ENG 73-141 SB 3 RECOMMENDED COMP VALVE, FUEL BYPASS - REPLACE TO PRECLUDE LEAKAGE Information Only This Document SUPERSEDES PW4ENG 73-141/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 73-146 SB - RECOMMENDED COMP BRACKET, WIRING HARNESS W5/W4 - MOD TO INCREASE CLEARANCE BTWN WIRES Closed 19.May.1998 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'-' RECORDS

PW4ENG 73-147 SB 1 RECOMMENDED COMP FADEC, SOFTWARE - VERSION SCN09A/AG (BOEING PHASE III) Information Only This Document SUPERSEDES PW4ENG 73-147/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 73-148 SB 2 RECOMMENDED COMP HARNESS, W4/W5 - ADD CHAFE PROTECTION AT THE FMU BACKSHELLS Superseded (Superseded) This Document SUPERSEDES PW4ENG 73-148/SB Rev.1 This Document has been SUPERSEDED BY PW4ENG 73-148/SB Rev.3

PW4ENG 73-148 SB 3 RECOMMENDED COMP HARNESS, W4/W5 - ADD CHAFE PROTECTION AT THE FMU BACKSHELLS Closed 21.May.2011 This Document SUPERSEDES PW4ENG 73-148/SB Rev.2 This Document terminates PW4ENG A75-51-PT.H01/SB Rev.14 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 21.May.2011 75448:00/H 12'181/C PerfRev.:'3' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-151 SB 1 RECOMMENDED COMP PUMP, MAIN FUEL - STRENGTHENED HOUSING TO ELIMINATE HSG CRACKING Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 73-151/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 73-152 SB 1 OPTIONAL COMP TRANSDUCER, N1 SPEED - INTRODUCTION OF REPAIR OPTION Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 73-152/SB Rev.-

PW4ENG 73-153 SB 2 RECOMMENDED COMP SCU, SOFTWARE - VERSION SCN.. DUE TO NEW PROCESSOR AND NUISANCE FAULTS Information Only This Document SUPERSEDES PW4ENG 73-153/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 73-153 SB 1 RECOMMENDED COMP SCU, SOFTWARE - VERSION SCN.. DUE TO NEW PROCESSOR AND NUISANCE FAULTS Superseded (Superseded) This Document SUPERSEDES PW4ENG 73-153/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 73-153/SB Rev.2

PW4ENG 73-155 SB 1 RECOMMENDED COMP UNIT, FUEL METERING - NEW TQ MOTOR TO PREVENT OVERFUELLING AT START Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 73-155/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 73-156 SB 1 RECOMMENDED COMP FUEL TEMP.,IMPROVED THERMOCOUPLE INSTALLATION - INCORPORATION OF Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 73-159 SB 3 RECOMMENDED COMP FADEC, SOFTWARE - VERSION SCN10/AH (BOEING) Information Only This Document SUPERSEDES PW4ENG 73-159/SB Rev.2 Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-161 SB 3 RECOMMENDED COMP THERMOCOUPLE, FUEL TEMP - MODY TO PRECLUDE FAILURE DUE TO VIBRATION Open PT.A This Document SUPERSEDES PW4ENG 73-161/SB Rev.2 This Document terminates PW4ENG A75-51-PT.H03/SB Rev.14 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-161 PT.B SB 3 RECOMMENDED COMP THERMOCOUPLE, FUEL TEMP - CHANGE TO PRECLUDE FAILURE DUE TO VIBRATION Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 73-161/SB Rev.2

PW4ENG 73-164 SB 2 RECOMMENDED COMP BRACKET, W5/W6 INTERFACE - RELOCATION TO ELIMINATE EXCESSIVE VIBRATION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-166 SB 1 RECOMMENDED COMP FADEC, SOFTWARE - VERSION SCN10B/AI (BOEING) Information Only This Document SUPERSEDES PW4ENG 73-166/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 73-167 SB 2 RECOMMENDED COMP MANIFOLD, FUEL NOZZLE - CHANGE THRUST WIRE AND SEAL TO PRECLUDE LEAKS Closed 19.May.1998 This Document SUPERSEDES PW4ENG 73-167/SB Rev.1 This Document terminates PW4ENG 73-176/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'2' RECORDS

PW4ENG 73-169 SB 1 RECOMMENDED COMP HOSE, PT4.95 (AS13) - REPLACE TO NEW STANDARD SIZE DIA. INCL CLAMPING Open This Document SUPERSEDES PW4ENG 73-169/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-170 SB 1 RECOMMENDED COMP BOLTS, FUEL DISTRIBUTION VALVE - LONGER ANTI-GALLANT COATED BOLTS Open This Document SUPERSEDES PW4ENG 73-170/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-171 SB - RECOMMENDED COMP HOSE, PMA COOLING - SILICON IMPREGNATE TO IMPROVE DURABILITY Closed 19.May.1998 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'-' RECORDS

PW4ENG 73-172 SB - RECOMMENDED COMP SWITCH, FUEL DELTA PRESS - NEW TO PRECLUDE FALSE FUEL FILTER CLOG MSG Not Applicable by Serial Number

PW4ENG 73-173 SB - RECOMMENDED COMP SWITCH, FUEL DELTA PRESS - NEW TO PRECLUDE FALSE FUEL FILTER CLOG MSG Rotable Driven - Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 73-174 SB - RECOMMENDED COMP HARNESS, W6 - REPLACE GROUNDING PIG TAILS BY ALTERNATE GROUNDING Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-175 SB - RECOMMENDED COMP PROBE, PT2/TT2 - TEMPERATURE SENSORS WITH IMPROVED CRACK RESISTANCE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-176 SB - RECOMMENDED COMP NOZZLE, FUEL B-NUT - LEAKAGE AND PROPER TORQUE CHECK Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 73-167/SB Rev.2 Reason for this Status This document was terminated the 20.May.1998 with implementation of the document PW4ENG 73-167/SB/2.

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-179 SB 1 RECOMMENDED COMP HOSE/TUBE ASSY, FM11 - REPLACEMENT OF Repetitive (Next Shop Visit) This Document terminates EOD-COMP-73-12001-R00/EOD Rev.00 This Document terminates PW4ENG 73-205/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 33567:00/H 5'751/C PerfRev.:'1' DOCS

PW4ENG 73-180 SB 1 RECOMMENDED COMP STATOR & ROTOR, PMA - INTRO OF NEW PARTS TO IMPROVE DURABILITY Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 73-180/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 73-181 SB - RECOMMENDED COMP THERMOCOUPLE, STA.3.0 (TT3) - IMPROVE SIGNAL RELIABILITY Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-183 SB - INFORMATION COMP NOZZLE, FUEL INJECTOR - END CAP HEATSHIELD REPAIR REIDENTIFICATION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-184 SB 1 RECOMMENDED COMP HARNESS, W6 - HIGHER WEAR AND HEAT RESISTANCE TO IMPROVE DURABILITY Open This Document SUPERSEDES PW4ENG 73-184/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-188 SB 2 RECOMMENDED COMP FADEC, SOFTWARE - VERSION SCN11B/AM (BOEING CUT-BACK HPC) Information Only This Document SUPERSEDES PW4ENG 73-188/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 73-189 SB 1 RECOMMENDED COMP HARNESS, W1/W2 - RECONFIG FOR HPC CBS AND RCC LOGIC Open This Document SUPERSEDES PW4ENG 73-189/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-191 SB 1 RECOMMENDED COMP STATOR, PMA - MODIFY TO ELIMINATE INTERFERENCE FIT WITH GEARBOX Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 73-191/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 73-192 SB - RECOMMENDED COMP HARNESS, W5/W6 - INTRODUCTION OF COOLING TO INCREASE CONNECTOR LIFE Closed 27.May.2011 This Document terminates PW4ENG A75-51-PT.H05/SB Rev.14 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'-' DOCS

PW4ENG 73-197 SB - RECOMMENDED COMP FADEC, SOFTWARE - VERSION SCN13/AO (BOEING RCC MOD) Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 73-197/SB Rev.1 This Document SUPERSEDES PW4ENG-73-196/SB Rev.-

PW4ENG 73-197 SB 1 MANDATORY COMP FADEC, SOFTWARE - VERSION SCN13/AO (BOEING RCC MOD) Information Only This Document SUPERSEDES PW4ENG 73-197/SB Rev.- Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-198 SB 1 RECOMMENDED COMP HARNESS, W1/W2 - MOD FOR COMPATIBILITY WITH RCC EEC (SCN13) Closed 11.Jan.2004 This Document is terminated with implementation of PW4ENG 72-755/SB Rev.7 This Document SUPERSEDES PW4ENG 73-198/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'1' DOCS

PW4ENG 73-202 SB - RECOMMENDED COMP EPP, BOEING APPLICATIONS - MASTER LIST Open (Next Shop Visit) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-205 SB 1 RECOMMENDED COMP HOSE/TUBE ASSY, FM11- INSPECTION FOR NONCONFORMING ASSEMBLIES Superseded (Superseded) This Document SUPERSEDES PW4ENG 73-205/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 73-205/SB Rev.2

PW4ENG 73-205 SB 2 RECOMMENDED COMP HOSE/TUBE ASSY, FM11- INSPECTION FOR NONCONFORMING ASSEMBLIES Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 73-179/SB Rev.1 This Document SUPERSEDES PW4ENG 73-205/SB Rev.1 Reason for this Status This document was terminated the 22.Feb.2000 with implementation of the document PW4ENG 73-179/SB/1.

PW4ENG 73-205 SB - RECOMMENDED COMP HOSE/TUBE ASSY, FM11- INSPECTION FOR NONCONFORMING ASSEMBLIES Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 73-205/SB Rev.1

PW4ENG 73-206 SB - OPTIONAL COMP FADEC, MODULE L18 - NEW PROCESSOR/INPUT MODULE CH-A PROCUREMENT ISSUES Information Only Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-207 SB - OPTIONAL COMP FADEC, MODULE L19 - NEW PROCESSOR/INPUT MODULE CH-B PROCUREMENT ISSUES Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 73-212 SB - INFORMATION COMP END SEAL - ELECTRICAL PLUG, INTRODUCTION OF ALTERNATIVE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-213 SB - RECOMMENDED COMP UNIT, FUEL METERING - TORQUE MOTOR NOZZLE INSPECTION Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 73-214 SB 2 MANDATORY COMP FADEC - PULSE WIDTH MODULATOR SUSPECT UNITS, IDENTIFICATION OF AD Not Applicable FAA2008-24-13 This Document SUPERSEDES PW4ENG A73-214/SB Rev.1 Perform WITHIN 600/H (effective from Effective Date 08.Jan.2009)

PW4ENG 73-216 SB - MANDATORY COMP FADEC - PULSE WIDTH MODULATOR NON-GR1 UNITS - MANAGEMENT PLAN OF AD Not Applicable FAA2008-24-13 This Document is terminated with implementation of EEC131-1-73-59/SB Rev.- Perform within an unlimited threshold.

PW4ENG 73-217 SB - OPTIONAL COMP PROCESSOR, MODULE - NEW CH-A GATE ARRAY DUE TO PROCUREMENT ISSUES Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 73-218 SB - OPTIONAL COMP FADEC - NEW PROCESSOR MODULE (CH.B) - INTRO OF Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-219 SB - OPTIONAL COMP FADEC,SOFTWARE - VERSION SCN14/AP (BOEING) INTRODUCTION OF Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 73-219/SB Rev.1

PW4ENG 73-219 SB 1 OPTIONAL COMP FADEC, SOFTWARE - VERSION SCN14/AP (BOEING) Information Only This Document SUPERSEDES PW4ENG 73-219/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 73-220 SB - RECOMMENDED COMP FMU, METERING VALVE - MODIFY TO PRECLUDE OVERSPEED CONDITION Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 73-220/SB Rev.1

PW4ENG 73-220 SB 1 RECOMMENDED COMP FMU, METERING VALVE - MODIFY TO PRECLUDE OVERSPEED CONDITION AD Rotable Driven - Accomplished FAA2012-04-04 This Document SUPERSEDES PW4ENG 73-220/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 73-221 SB 00 RECOMMENDED COMP EEC, PB SENSOR-TIMED REPLACEMENT AND INTRO OF PB CONTROL LABEL Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 73-222 SB - RECOMMENDED COMP HARNESS, W12 - MOD FOR USE IN SCU CONFIGURED AIRFRAMES Not Applicable by Serial Number

PW4ENG 73-35 SB 3 RECOMMENDED COMP TUBE, FOC TO PUMP (FM11) - REPLACE RIDGID TUBE BY TUBE AND HOSE ASSY Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 73-35/SB Rev.-

PW4ENG 73-37 SB 1 RECOMMENDED COMP FUEL METERING (FMU), UNIT - REPLACE TO REDUCE RESOLVER GEAR WEAR Information Only This Document SUPERSEDES PW4ENG 73-37/SB Rev.- Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-42 SB 1 MANDATORY COMP FLOW METER, FUEL - STAINLESS STEEL SUPPORT TO PREVENT FRACTURES Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 73-42/SB Rev.-

PW4ENG 73-45 SB 2 RECOMMENDED COMP FADEC, SOFTWARE - VERSION SCN04/C (BOEING) Information Only This Document SUPERSEDES PW4ENG 73-45/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 73-5 SB 1 RECOMMENDED COMP SENSOR, N1 - MOD TO ACCEPT SHIM TO OBTAIN REQUIRED CLEARANCE [GAP] Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 73-5/SB Rev.-

PW4ENG 73-5 SB - OPTIONAL COMP SENSOR, N1 - MOD TO ACCEPT SHIM TO OBTAIN REQUIRED CLEARANCE [GAP] Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY PW4ENG 73-5/SB Rev.1

PW4ENG 73-54 SB - RECOMMENDED COMP TUBE, TCA SOL (AA22) - REPLACE TO PREVENT INTERFERENCE WITH W5 HARNESS Not Applicable by Serial Number

PW4ENG 73-55 SB - RECOMMENDED COMP FADEC - NEW DATA ENTRY PLUG AND IDENTIFICATION PLATE Not Applicable by Serial Number

PW4ENG 73-62 SB - MANDATORY COMP PUMP, FUEL - INTRODUCTION OF NEW FUEL FILTER ELEMENT Closed 20.Jan.1991 This Document is terminated with implementation of PW4ENG 73-85/SB Rev.2 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks DELIVERY 20.Jan.1991 PerfRev.:'-' DOCS

PW4ENG 73-63 SB 4 MANDATORY COMP TUBE, FUEL [FM09] - IMPROVED SUPPORT TO PRECLUDE CHAFING DAMAGE Not Applicable by Serial Number This Document terminates PW4ENG A75-51-PT.C01/SB Rev.14

PW4ENG 73-64 SB - RECOMMENDED COMP FADEC, SOFTWARE - REVISION FOR OPTIMUM SVA SCHEDULE Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-67 SB 1 RECOMMENDED COMP EPP, BOEING APPLICATIONS - REPLACEMENT Not Applicable by Serial Number

PW4ENG 73-70 SB 1 RECOMMENDED COMP SOLENOID, B295 - NEW CONNECTOR KEYING TO PRECLUDED WIRING INTERMIX Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 73-71 SB - MANDATORY COMP UNIT, FUEL METERING - INTRO UNIT WITH IMPROVED RESOLVER Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 73-77/SB Rev.3

PW4ENG 73-72 SB 5 MANDATORY COMP PMA, STATOR - INTRO UNIT WITH IMPROVED DURABILITY Not Applicable by Serial Number

PW4ENG 73-74 SB 2 MANDATORY COMP HARNESS, W6 - MOD TO ELIMINATE ERRONEOUS THERMOCOUPLE READINGS Not Applicable by Serial Number

PW4ENG 73-75 SB 1 MANDATORY COMP PUMP, FUEL - INTRO OF IMPROVED FILTER COVER RETENTION DESIGN Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 73-85/SB Rev.2

PW4ENG 73-76 SB - RECOMMENDED COMP BRACKET, MGB - REVISE TO IMPROVE CLEARANCE FOR W3 AND W5 HARNESS Not Applicable by Serial Number

PW4ENG 73-77 SB 3 MANDATORY COMP FMU - INTEGRAL SOLENOID ACTUATED FUEL START/STOP FUNCTION Not Applicable by Serial Number This Document terminates PW4ENG 73-71/SB Rev.-

PW4ENG 73-80 SB - RECOMMENDED COMP CLAMP, W2 HARNESS - RELOCATE TO IMPROVE CLEARANCES Not Applicable by Serial Number

PW4ENG 73-82 SB 3 RECOMMENDED COMP THERMOCOUPLE, FUEL/OIL - IMPROVED DURABILITY AND VIBRATION RESISTANCE Not Applicable by Serial Number

PW4ENG 73-84 SB 4 RECOMMENDED COMP HARNESS, EEC W3 AND W5 - STUD TERMINALS FOR FUEL/OIL THERMOCOUPLES Not Applicable by Serial Number

PW4ENG 73-85 SB 2 MANDATORY COMP PUMP, FUEL - INTRO OF FUEL FILTER COVER WITH TAPERED PINS Not Applicable by Serial Number This Document terminates PW4ENG 73-62/SB Rev.- This Document terminates PW4ENG 73-75/SB Rev.1

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 73-86 SB - RECOMMENDED COMP TUBE, FUEL SUPPLY (FM05,FM06,FM07) - REROUTE FOR ADDITIONAL CLEARANCE Not Applicable by Serial Number

PW4ENG 73-88 SB 1 RECOMMENDED COMP PROBE, N1 SPEED - ADD LOCATOR STUD / JACKSCREW OPTION FOR MAINTENANCE Not Applicable by Serial Number

PW4ENG 73-89 SB 2 RECOMMENDED COMP TUBE ASSY, PT25 AND PB [AS20 AS28] - REPLACE TO AVOID ICE FORMATION Not Applicable by Serial Number

PW4ENG 73-90 SB - RECOMMENDED COMP FADEC, SOFTWARE - VERSION SCN6/D (BOEING) Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 73-92 SB 2 RECOMMENDED COMP TUBE, AGB SCAVENGE (LR01) - REPLACE TO INCORP J-BRACKETS FOR W5 Not Applicable by Serial Number

PW4ENG 73-94 SB 1 RECOMMENDED COMP HARNESS, WIRING W1 - AUTO-DEPOWER CIRCUIT DE-ACTIVATION Not Applicable by Serial Number

PW4ENG 73-96 SB 2 RECOMMENDED COMP HARNESS, CLAMPS - FULLY CUSHIONED FOR IMPROVED INSTALLATION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 74-1 SB 1 RECOMMENDED COMP SEAL, IGNITION - INCORPORATE SEAL ASSY TO IMPROVE EXCITER COOLING Not Applicable by Serial Number

PW4ENG 74-2 SB 1 RECOMMENDED COMP CABLE, UNIT - IMPROVEMENT TO EXTENT SERVICE LIFE BY SPIRAL WRAP Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 74-3 SB 2 RECOMMENDED COMP CABLE, BRACKET AND CLAMPS - ADD SUPPORT TO IMPROVE CLEARANCES Not Applicable by Serial Number

PW4ENG 74-4 SB - RECOMMENDED COMP EXCITER, FRONT HEATSHIELD - AIRFRAMER IGN SYSTEM MARKING/ Not Applicable by Serial Number INTRODUCTION

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 74-5 SB - RECOMMENDED COMP EXCITER, FRONT HEATSHIELD - AIRFRAMER IGN SYSTEM MARKING/ REVISION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 74-6 SB - INFORMATION COMP EXCITER, UNIT - ALTERNATE OPTION COMMON TO JT9D Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 74-7 SB - RECOMMENDED COMP CABLE, SPRING AND SUPPORT - REPLACE TO PRECLUDE ARCING Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 74-8 SB 1 RECOMMENDED COMP CABLE, UNIT - IMPROVEMENT TO EXTENT SERVICE LIFE Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 74-8/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 74-9 SB 1 INFORMATION COMP GUIDE, IGNITER - BOSS AND GUIDE ASSY TO REPLACE MISSING GUIDE TEMP FIX Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-601/SB Rev.1 This Document SUPERSEDES PW4ENG 74-9/SB Rev.- Reason for this Status This document was terminated the 20.May.1998 with implementation of the document PW4ENG 72-601/SB/1.

PW4ENG 75-100 SB 2 RECOMMENDED COMP ACTUATOR, TURBINE COOLING VALVE - ELIMINATE THE RAIL END CAPS Information Only This Document SUPERSEDES PW4ENG 75-100/SB Rev.1 Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-101 SB 3 RECOMMENDED COMP VALVE, TVBCA - PERIODIC TESTING FOR PROPER OPERATION Open This Document SUPERSEDES PW4ENG 75-101/SB Rev.- This Document SUPERSEDES PW4ENG 75-101/SB Rev.2 Perform within an unlimited threshold.

PW4ENG 75-103 SB 2 RECOMMENDED COMP BRACKET, LP32 - MODIFIY TO INCREASE CLEARANCE WITH ENGINE HARDWARE Open This Document SUPERSEDES PW4ENG 75-103/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-104 SB 4 RECOMMENDED COMP ACTUATOR, TCC - IMPROVED SHAFT SEALS TO PRECLUDE OVERBOARD LEAKAGE Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 75-104/SB Rev.3 Reason for this Status AUTO ASSIGNED

PW4ENG 75-105 SB 1 RECOMMENDED COMP MANIFOLD, HPT TCC - MODIFICATION OF IMPROVED CLEARANCE Open This Document SUPERSEDES PW4ENG 75-105/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-107 SB 3 RECOMMENDED COMP SWITCH, TRC VALVE - REMOVE POS. SWITCH TO PRECLUDE INDICATION ERROR Open This Document SUPERSEDES PW4ENG 75-107/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-108 SB 1 RECOMMENDED COMP ACTUATOR, B2.5/SVA, INTRO SHAFT SCRAPER TO PRECLUDE LEAKAGES Information Only This Document SUPERSEDES PW4ENG 75-108/SB Rev.- Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-110 SB 1 RECOMMENDED COMP PLATE, BRG.#2 THRUST BALANCE AP22 - REPL BY DEFLECTOR TO IMPR BALANCE Not Applicable by Serial Number

PW4ENG 75-111 SB 1 RECOMMENDED COMP FILTER, AIR COMPRESSOR DISCHARGE - IMPROVED BYPASS SPRING Open This Document SUPERSEDES PW4ENG 75-111/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-112 SB 1 RECOMMENDED COMP BRACKET, TCA SOLENOID - MODIFY TO ELIMINATE INTERFERENCE Closed 19.May.1998 This Document SUPERSEDES PW4ENG 75-112/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'1' RECORDS

PW4ENG 75-113 SB 1 RECOMMENDED COMP ACTUATOR, B25/SVA - NEW TORQUE MOTOR AND CONTACTS Information Only This Document SUPERSEDES PW4ENG 75-113/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 75-114 SB 2 RECOMMENDED COMP TUBES, TCA AP01 & AP03 - SILVER PLATED BOLTS TO PRECLUDE SEIZING Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 75-114/SB Rev.1

PW4ENG 75-115 SB 1 RECOMMENDED COMP B295 VALVE - STAMPED SCREEN INTRODUCTION OF Superseded (Rotable Driven - Not Accomplished) This Document SUPERSEDES PW4ENG 75-115/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 75-115/SB Rev.2 Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-115 SB 2 RECOMMENDED COMP B295 VALVE - STAMPED SCREEN INTRODUCTION OF Superseded (Rotable Driven - Not Accomplished) This Document SUPERSEDES PW4ENG 75-115/SB Rev.1 This Document has been SUPERSEDED BY PW4ENG 75-115/SB Rev.3 Reason for this Status AUTO ASSIGNED

PW4ENG 75-115 SB 4 RECOMMENDED COMP B295 VALVE - STAMPED SCREEN INTRODUCTION OF Information Only This Document SUPERSEDES PW4ENG 75-115/SB Rev.3 Reason for this Status AUTO ASSIGNED

PW4ENG 75-117 SB 2 RECOMMENDED COMP CABLE, TURBINE CASE COOLING - INCREASED JAM NUT ADJUSTMENT RANGE Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 75-117/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 75-118 SB 2 RECOMMENDED COMP VALVE, SOLENOID IDG/TCA - MODIFICATION TO PRECLUDE INTERNAL CORROSION Information Only This Document SUPERSEDES PW4ENG 75-118/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 75-119 SB 3 RECOMMENDED COMP SOLENOID, VALVE TURBINE COOLING AIR - IMPROVED CORROSION RESISTANCE Information Only This Document SUPERSEDES PW4ENG 75-119/SB Rev.2 Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-120 SB 2 RECOMMENDED COMP SOLENOID, TURBINE COOLING AIR - IMPROVED CORROSION RESISTANCE Information Only This Document SUPERSEDES PW4ENG 75-120/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 75-121 SB 2 RECOMMENDED COMP SOLENOID, TURBINE COOLING AIR - IMPROVED CORROSION RESISTANCE Information Only This Document SUPERSEDES PW4ENG 75-121/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 75-122 SB 4 RECOMMENDED COMP BLEED 2.95 SYSTEM, FAILURE DUE TO INTERNAL CORROSION - TESTING OF Open This Document SUPERSEDES PW4ENG 75-122/SB Rev.3 Perform in an interval of 500/C

PW4ENG 75-123 SB 2 RECOMMENDED COMP RELAY, START/STABILITY - CORROSION RESISTANCE TO PRECLUDE SURGES Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 75-123/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 75-124 SB 1 RECOMMENDED COMP SOLENOID, B295 - CORROSION PROTECTION TO PRECLUDE SURGES Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 75-124/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 75-125 SB - RECOMMENDED COMP TUBE, VENT(AP17) METERING PLUG - REMOVAL FOR CORRECT BRG#2 THRUST LOAD Closed 21.Feb.2000 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 33567:00/H 5'751/C PerfRev.:'-' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-126 SB - RECOMMENDED COMP BRACKET, B2.5 ACTUATOR - INTRODUCTION OF NUTPLATES TO IMPROVE MAINT. Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-127 SB 1 RECOMMENDED COMP DUCT, TCC CLAMPS - SUSPECT VENDOR CODE MATERIAL REMOVE FROM SERVICE Open This Document SUPERSEDES PW4ENG 75-127/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-128 SB 2 RECOMMENDED COMP TUBE, PS3 AIR (AA26 & AA29) - REPLACE BOLT TO GET MORE CLEARANCE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-129 SB 2 RECOMMENDED COMP BLEED 2.95 SYSTEM, INTERNAL VALVE LEAKAGE - TESTING OF Open This Document SUPERSEDES PW4ENG 75-129/SB Rev.1 Perform in an interval of 500/C

PW4ENG 75-130 SB 1 RECOMMENDED COMP VALVE, B295 - MODIFICATION TO REDUCE INTERNAL LEAKAGE OF SERVO AIR Superseded (Superseded) This Document SUPERSEDES PW4ENG 75-130/SB Rev.- This Document has been SUPERSEDED BY PW4ENG 75-130/SB Rev.2

PW4ENG 75-130 SB 2 RECOMMENDED COMP VALVE, B295 - MODIFICATION TO REDUCE INTERNAL LEAKAGE OF SERVO AIR Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 75-130/SB Rev.1 Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-130 SB - RECOMMENDED COMP VALVE, B295 - MODIFICATION TO REDUCE INTERNAL LEAKAGE OF SERVO AIR Superseded (Rotable Driven - Accomplished) This Document has been SUPERSEDED BY PW4ENG 75-130/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 75-131 SB - RECOMMENDED COMP BRACKET, TCC AIR TUBE SUPPORT - INCORPORATE MORE DURABLE GUIDE PINS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-132 SB 5 RECOMMENDED COMP ACTUATOR, STATOR VANE - MODIFIED LVDT ADJUSTER TO PRECLUDE BACK OUT Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 75-132/SB Rev.4 Reason for this Status AUTO ASSIGNED

PW4ENG 75-133 SB - RECOMMENDED COMP DEFLECTOR, DIFFUSER AIR VENT (AP17/AP22) - USAGE OF COMMON PART Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-134 SB - RECOMMENDED COMP SOLENOID, B295 - INCREASED AIR FLOW CAPACITY TO IMPR. RELIABILITY Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-135 SB - RECOMMENDED COMP ACTUATOR, TCC VALVE - SERVO VALVE CONTAMINATION INSPECTION Information Only Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-136 SB 2 RECOMMENDED COMP BEARING, TCC IDLER ARM - DOUBLE ROW BRG TO IMPROVE DURABILITY Closed 21.Feb.2000 This Document SUPERSEDES PW4ENG 75-136/SB Rev.1 This Document SUPERSEDES PW4ENG 75-74/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 33567:00/H 5'751/C PerfRev.:'2' DOCS

PW4ENG 75-137 SB - RECOMMENDED COMP ACTUATOR, TCC VALVES - IMPROVED O-RING Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-138 SB 2 RECOMMENDED COMP RELAY, START/STABILITY - IMPROVED CORROSION RESISTANCE Information Only This Document SUPERSEDES PW4ENG 75-138/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 75-139 SB - RECOMMENDED COMP B295 VALVE - IMPROVED THERMOCOUPLE, INTRODUCTION OF Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 75-140 SB 1 RECOMMENDED COMP SOLENOID, B295 - DURABLE CORROSION RESISTANT VALVE TO PRECLUDE SURGES Information Only This Document SUPERSEDES PW4ENG 75-140/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 75-141 SB 1 RECOMMENDED COMP COOLING, TURBINE CASE - COMMON MANIFOLDS (AC06/AC07) AND BRACKETS Open This Document SUPERSEDES PW4ENG 75-141/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-142 SB - RECOMMENDED COMP ACTUATOR, STATOR VANE - COMMON HOUSING TO REDUCE PRODUCTION COST Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-143 SB - RECOMMENDED COMP ACTUATOR, B25 - NEW MACHINED HOUSING TO LOWER PROD/MAINT COST Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 75-144 SB - RECOMMENDED COMP VALVE, BREATHER BRG. 3 - DELETION OF Not Applicable by Serial Number

PW4ENG 75-145 SB - RECOMMENDED COMP TUBE, AIR B295 (AA30) - REPLACE BY CORRECT CONFIGURATION Not Applicable by Serial Number

PW4ENG 75-146 SB - RECOMMENDED COMP VALVE, START/STABILITY - IMPROVED PISTON SEAL, INTRODUCTION OF Rotable Driven - Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 75-147 SB 1 MANDATORY COMP VALVE, TVBCA - SHORTENED FLOW DIVIDER FOR RCC FIT AD FAA2003-19-15 Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 75-147/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 75-148 SB - RECOMMENDED COMP SOLENOID, TCA/IDG - RELIABILITY AND DURABILITY IMPROVEMENTS Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-149 SB - RECOMMENDED COMP SOLENOID, B295 - INSPECT PLUNGER AND BUTTON ASSY FOR PROPER SEATING Information Only Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-150 SB 1 RECOMMENDED COMP VALVE, BLEED (B295) - INSPECTION FOR AND REWORK OF WELD VOIDS Information Only This Document SUPERSEDES PW4ENG 75-150/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 75-151 SB 4 RECOMMENDED COMP VALVE, HOUSING B295 - INSPECT FOR AND REPAIR MISSED WELD JOINT Information Only This Document SUPERSEDES PW4ENG 75-151/SB Rev.03 Reason for this Status AUTO ASSIGNED

PW4ENG 75-151 SB 02 RECOMMENDED COMP VALVE, HOUSING B295 - INSPECT FOR AND REPAIR MISSED WELD JOINT Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 75-151/SB Rev.03

PW4ENG 75-151 SB 03 RECOMMENDED COMP VALVE, HOUSING B295 - INSPECT FOR AND REPAIR MISSED WELD JOINT Superseded (Superseded) This Document SUPERSEDES PW4ENG 75-151/SB Rev.02 This Document has been SUPERSEDED BY PW4ENG 75-151/SB Rev.4

PW4ENG 75-152 SB - RECOMMENDED COMP ACTUATOR, VANE - TORQUE MOTOR NOZZLE INSPECTION Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-153 SB - RECOMMENDED COMP ACTUATOR, B2.5 - TORQUE MOTOR NOZZLE INSPECTION Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-154 SB - RECOMMENDED COMP B25 - CLEVIS, ROD END REPLACEMENT OF TO IMPROVE EXTERNAL THREAD Open (Next Shop Visit) GEOMETRY. Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-155 SB - RECOMMENDED COMP TUBE, IDG AOC PRESS SW.(AA32) - IMPROVED SEALING TO PRECLUDE FALSE MSG Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-156 SB 1 RECOMMENDED COMP VALVE, LPTCC - RELIABILITY IMPROVEMENT BY A MORE DURABLE LOWER BEARING Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 75-156/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 75-156 SB - OPTIONAL COMP VALVE, LPTCC - RELIABILITY IMPROVEMENT BY A MORE DURABLE LOWER BEARING Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 75-156/SB Rev.1

PW4ENG 75-157 SB 1 RECOMMENDED COMP VALVE, HPTCC - RELIABILITY IMPROVEMENT BY A MORE DURABLE LOWER BEARING Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 75-157/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 75-157 SB - OPTIONAL COMP VALVE, HPTCC - RELIABILITY IMPROVEMENT BY A MORE DURABLE LOWER BEARING Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 75-157/SB Rev.1

PW4ENG 75-158 SB - RECOMMENDED COMP VALVE, PNEUMATIC RELAY - NEW END CAP FOR CORROSION PREVENTION Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-28 SB 4 MANDATORY COMP BRACKET, SOLENOID B295 - IMPROVED TO EASE SOLENOID REPLACEMENT Not Applicable by Serial Number

PW4ENG 75-36 SB 1 RECOMMENDED COMP TUBE, THERMATIC ROTOR CONTROL - REPLACE TO PRECLUDE INFERFERENCE COND Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-37 SB 2 MANDATORY COMP BRACKET, SOLENOID B295 - ELIMINATION OF ILL FITTING BRACKETS Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 77-09/SB Rev.2 This Document terminates PW4ENG A75-51-PT.B01/SB Rev.14

PW4ENG 75-39 SB 2 RECOMMENDED COMP TUBE, SUPPORT - RELOCATE FOR AIR S/O VLV AND W3 HARNESS Not Applicable by Serial Number

PW4ENG 75-41 SB 3 MANDATORY COMP TUBE AY, B295 SUPPLY - MODI TO PRECLUDE FRACTURE DUE TO VIBRATION Not Applicable by Serial Number This Document terminates PW4ENG A75-51-PT.B01/SB Rev.14

PW4ENG 75-45 SB 4 MANDATORY COMP TUBE ASSY, CP06/CR02 - NEW ASSY WITH IMPROVED VIBRATION RESISTANCE Not Applicable by Serial Number This Document terminates PW4ENG A75-51-PT.D01/SB Rev.14

PW4ENG 75-48 SB 1 RECOMMENDED COMP TUBE, THERMATIC ROTOR CONTROL - REPLACE TO IMPROVE CLEARANCE Not Applicable by Serial Number

PW4ENG 75-51 SB 14 MANDATORY COMP EXTERNALS, HARDWARE - INSPECTION FOR CONDITION TO PRECLUDE IFSD Open Perform within an unlimited threshold.

PW4ENG 75-52 SB 2 MANDATORY COMP TUBE ASSY, CP06/CR02/CR04 - NEW AY WITH IMPROVED VIBRATION RESISTANCE Not Applicable by Serial Number This Document terminates PW4ENG A75-51-PT.D01/SB Rev.14

PW4ENG 75-54 SB 1 RECOMMENDED COMP SWITCH, IDGS AOC OVERRIDE - INCORP MODEL WITH 10K OC RESISTANCE Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 75-57 SB 06 RECOMMENDED COMP SEAL, ROTATING - RESTORE LIFE BY REMOVING TCA METERING PLATES Not Applicable by Serial Number

PW4ENG 75-58 SB - RECOMMENDED COMP PLUG, ACCESS (AP11) - NEW PLUG AND TCA DUCT FOR IMPROVED INSTALLATION Not Applicable by Serial Number

PW4ENG 75-62 SB 2 MANDATORY COMP VALVE, HPC SEC.FLOW CNTRL (TRC) - REMOVE TUBES AA16/AA15 Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-64 SB 1 RECOMMENDED COMP SOLENOID, TCA - REPLACE WITH A MORE DURABLE UNIT Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-65 SB 1 RECOMMENDED COMP SOLENOID, TRC/TCA - REPLACE WITH UNIT WITH IMPROVED DURABILITY Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-70 SB 4 RECOMMENDED COMP B295 VALVE - SENSING SYSTEM, INTRODUCTION OF Not Applicable by Serial Number

PW4ENG 75-74 SB - RECOMMENDED COMP COOLING, TURBINE CASE - PRECLUDE MISASSEMBLY OF THE IDLER ARM SPACER Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 75-136/SB Rev.2

PW4ENG 75-75 SB - RECOMMENDED COMP BOLTS, TRC VALVE - INTRODUCE BOLTS WITH LOCKWIRE OPTION Not Applicable by Serial Number

PW4ENG 75-76 SB 1 MANDATORY COMP ACTUATOR, STATOR VANE - TORQUE MOTOR WIRING /W SPLIT GROMMET Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-77 SB - RECOMMENDED COMP BRACKET, TCA/TRC SOLENOID - REPLACE TO IMPROVE DURABILITY Not Applicable by Serial Number

PW4ENG 75-84 SB 2 MANDATORY COMP ACTUATOR, B25 - ADDITIONAL SUPPORT TO PRECLUDE FATIQUE FRACTURES Closed 25.Sep.1992 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA 25.Sep.1992 6531:00/H 1'216/C SHOPRECOR PerfRev.:'2' DS

PW4ENG 75-86 SB - RECOMMENDED COMP ACUTATOR, TCC - NEW CONTROL SHAFT TO PRECLUDE OVERBOARD LEAKAGE Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-88 SB - RECOMMENDED COMP VALVE, LPT COOLING - ADD RIVET TO ENSURE CORRECT INSTALLATION Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-89 SB 1 RECOMMENDED COMP SVA,IMPROVED PROTECTION AGAINST WIRE CHAFING - INTRODUCTION OF Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 75-90 SB 2 RECOMMENDED COMP B2.5 ACTUATOR - WIRING BUNDLE CHAFING PROTECTION - IMPROVEMENT OF Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 75-91 SB 2 RECOMMENDED COMP VALVE, TBVCA - RE-ACTIVATE AND RE-CONFIGURATED TRC/TCA CONTROL SYSTEM Open This Document SUPERSEDES PW4ENG 75-91/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-92 SB 1 RECOMMENDED COMP MANIFOLDS, HPT CASE CLNG - IMPROVED CLEARANCE TO PRECLUDE DAMAGE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 75-94 SB 2 RECOMMENDED COMP SWITCH, IDGS AOC OVERRIDE - INCORP MODEL WITH IMPROVED CONTACTS Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 75-94/SB Rev.3

PW4ENG 75-94 SB 3 RECOMMENDED COMP SWITCH, IDGS AOC OVERRIDE - INCORP MODEL WITH IMPROVED CONTACTS Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 75-94/SB Rev.2 Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 75-95 SB - RECOMMENDED COMP VALVE, BREATHER BRG. 3 - TWO POSITION TO ACCOMODATE HIGH THRUST MODELS Rotable Driven - Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 75-95 SB 2 RECOMMENDED COMP VALVE, BREATHER BRG. 3 - TWO POSITION TO ACCOMODATE HIGH THRUST MODELS Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 75-98 SB 2 RECOMMENDED COMP CABLE, TURBINE CASE COOLING - IMPROVED BALL GUIDE ASSY FOR DURABILITY Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 75-99 SB 2 RECOMMENDED COMP PIN, SVA TRUNNION - CHROME PLATING & CHAMFERING TO PREVENT CORROSION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 77-02 SB 3 RECOMMENDED COMP HARNESS, EGT WIRING - REVISED CLAMPING Not Applicable by Serial Number

PW4ENG 77-03 SB - RECOMMENDED COMP TUBE, ASSY PT2.5 - RELOCATE TO IMPROVE CLEARANCES (MINIMUX OPTION) Not Applicable by Serial Number

PW4ENG 77-04 SB 2 RECOMMENDED COMP THERMOCOUPLE, T4.95 - CHANGE RETENTION BOLT TO PREVENT BOLT FRACTURES Not Applicable by Serial Number

PW4ENG 77-09 SB 2 RECOMMENDED COMP SOLENOID, VALVE B295 - IMPR. BRG#1 VIBR PICK-UP ACCESS BY NEW BRACKET Not Applicable by Serial Number This Document terminates PW4ENG 75-37/SB Rev.2

PW4ENG 77-10 SB - RECOMMENDED COMP TUBES, SENSING (AS05, AS28) - IMPROVED CLAMPING Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 77-12 SB 2 RECOMMENDED COMP PROBES, EPR (PT4.95) - PERIODIC CLEANING TO PREVENT PLUGGING Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 77-16/SB Rev.4 Reason for this Status This document was terminated the 07.Dec.1994 with implementation of the document PW4ENG 77-16/SB/4.

PW4ENG 77-13 SB 1 RECOMMENDED COMP TRANSDUCER, BRG#1 VIBR. - INCREASE CABLE LENGTH AND STRONGER BACKSHELL Not Applicable by Serial Number

PW4ENG 77-14 SB 1 RECOMMENDED COMP TRANSDUCER, BRG#1 VIBRATION - REPLACE TO ELIMINATE WIRING PROBLEMS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 77-15 SB 1 RECOMMENDED COMP INDICATION, EGT SYSTEM - MOD J-BOX AN CABLE FOR CORRECT CHANNEL ID Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'1' RECORDS

PW4ENG 77-16 SB 4 RECOMMENDED COMP PROBES, EPR (PT4.95) - IMPROVED RESISTANCE TO PLUGGING Closed 06.Dec.1994 This Document terminates PW4ENG 77-12/SB Rev.2 This Document SUPERSEDES PW4ENG 77-16/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'4' RECORDS

PW4ENG 77-17 SB 1 RECOMMENDED COMP BRACKET, BRG#1 VIBR PICK UP - ADD LOCKWIRE HOLE FOR LP09 Open This Document SUPERSEDES PW4ENG 77-17/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 77-18 SB - RECOMMENDED COMP HARNESS, EGT - REPLACE SUPPORT BRACKETS TO IMPROVE CLEARANCES Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 77-19 SB - RECOMMENDED COMP TRANSDUCER. BRG#1 VIBR. - AUTHORISATION FOR PERMANENT REMOVAL Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 77-20 SB - RECOMMENDED COMP HARNESS, EGT - MORE DURABLE BOX AND CABLE ASSY Closed 27.May.2011 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 8'497/C PerfRev.:'-' DOCS

PW4ENG 79-10 SB 4 RECOMMENDED COMP INDICATOR, OIL TANK LEVEL - IMPROVED READABILITY Not Applicable by Serial Number

PW4ENG 79-14 SB 1 RECOMMENDED COMP PLUG, CHIP COLLECTOR MASTER - INTRODUCTION OF MAGNETIC PLUG Not Applicable by Serial Number

PW4ENG 79-16 SB 5 RECOMMENDED COMP PLUG, CHIP COLLECTOR MASTER - IMPROVED BODY VALVE SEALING Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY PW4ENG 79-59/SB Rev.3

PW4ENG 79-21 SB 3 RECOMMENDED COMP TUBES, OIL (AS01,LP15,LP16,LR06,LB03) - IMPROVED CLAMPING Not Applicable by Serial Number

PW4ENG 79-27 SB - RECOMMENDED COMP TUBE, BRG#3 BREATHER - SUPPORT BRACKET WITH FULLY WELDED SPACER Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 72-211/SB Rev.2

PW4ENG 79-29 SB 1 RECOMMENDED COMP TANK OIL, FLAPPER VALVE - INCORP ADDITIONAL PACKING AS BACK UP Not Applicable by Serial Number

PW4ENG 79-34 SB 4 RECOMMENDED COMP TUBE, OIL TANK DEAERATOR BREATHER - MOD TO PREVENT OIL DRAIN IN MGB Not Applicable by Serial Number

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 79-35 SB 1 RECOMMENDED COMP HOUSING, MAIN OIL FILTER - NEW COVER SEAL TO PREVENT LEAKAGES Not Applicable by Serial Number

PW4ENG 79-36 SB 2 MANDATORY COMP TUBE ASSY, LP01 - ADD LOOP CLAMP WEAR SLEEVES TO PRECLUDE CHAFING Not Applicable by Serial Number

PW4ENG 79-38 SB 2 MANDATORY COMP EXCHANGER HEAT, AIR/OIL - PROVIDE BY-PASS VALVE WITH IMPROVED SEALING Not Applicable by Serial Number This Document is terminated with implementation of PW4ENG 79-50/SB Rev.1

PW4ENG 79-39 SB - MANDATORY COMP SERVICING, OIL - STANDARDIZED PROCEDURE TO PREVENT OVER SERVICING Taskcard Controlled This Document is terminated with implementation of 5-A-79-06/CMP Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 79-40 SB - RECOMMENDED COMP RETAINER, FUEL OIL COOLER BRACKET - MOD. TO ELIMINATE INTERFERENCE Not Applicable by Serial Number

PW4ENG 79-41 SB - RECOMMENDED COMP TUBE, BRG#4 OIL PRESS (LP34) - NEW HEATSHIELD TO PREVENT INTERFERENCE Not Applicable by Serial Number

PW4ENG 79-42 SB 1 MANDATORY COMP EXCHANGER HEAT, AIR/OIL - RECALL FOR SUSPECT WELDS Not Applicable by Serial Number

PW4ENG 79-43 SB 4 RECOMMENDED COMP TANK, OIL - IMPROVED ANTI-SIPHON AND VENT TO PRECLUDED OVER SERVICING Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 79-43/SB Rev.3

PW4ENG 79-43 SB 3 MANDATORY COMP TANK, OIL - IMPROVED ANTI-SIPHON AND VENT TO PRECLUDED OVER SERVICING Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY PW4ENG 79-43/SB Rev.4

PW4ENG 79-44 SB - RECOMMENDED COMP BRACKET, LOOP CLAMP - ADD TO PRECLUDE AIR/OIL COOLER HARNESS CHAFING Not Applicable by Serial Number

PW4ENG 79-45 SB - RECOMMENDED COMP VALVE, AIR/OIL HX - INCORP WIRE HARNESS WITH 90DEGR BACKSHELL Information Only Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 79-46 SB 5 MANDATORY COMP TUBE, ASSY LR04/LR05 - ADD SLEEVES TO PRECLUDE WEAR AND INTERFERENCE Not Applicable by Serial Number

PW4ENG 79-47 SB 3 MANDATORY COMP TANK OIL, REMOTE FILL - REMOVAL OF Not Applicable by Serial Number

PW4ENG 79-48 SB - RECOMMENDED COMP OIL TANK, BRACKET - REPOSITIONING FOR IDENT PLATE AND HEAT SHIELD Not Applicable by Serial Number

PW4ENG 79-49 SB 3 RECOMMENDED COMP TUBE, ASSY (CP08/CP09/CR08 THRU CR13 - ANTI ROTATION FEATURE. Not Applicable by Serial Number This Document terminates PW4ENG 24-004/SB Rev.-

PW4ENG 79-50 SB 1 RECOMMENDED COMP EXCHANGER HEAT, AIR/OIL - IMPROVED END PLATE AND TUBES TO AVOID LEAKS Open This Document terminates PW4ENG 79-38/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 79-52 SB - MANDATORY COMP TUBE, ASSY (LP19) - WITH INTEGRAL STRAINER TO PRECLUDE VIBRATION EXC. Superseded (Not Applicable by Serial Number) This Document has been SUPERSEDED BY PW4ENG 79-52/SB Rev.3

PW4ENG 79-52 SB 3 MANDATORY COMP TUBE, ASSY (LP19) - WITH INTEGRAL STRAINER TO PRECLUDE VIBRATION EXC. Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 79-52/SB Rev.- This Document terminates PW4ENG A75-51-PT.E02/SB Rev.14 This Document terminates PW4ENG A75-51-PT.E03/SB Rev.14

PW4ENG 79-53 SB 2 MANDATORY COMP HOUSING, MAIN BRG STRAINER - REPLACE WITH STEEL HSG TO PREVENT CRACKS Not Applicable by Serial Number

PW4ENG 79-54 SB 3 MANDATORY COMP TUBE, ASSY LP09/LP15 - REROUTE AND IMPROVE CLAMPING AGAINST VIBS Closed 06.Dec.1994 This Document terminates PW4ENG A75-51-PT.E05/SB Rev.14 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'3' RECORDS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 79-56 SB - RECOMMENDED COMP TANK, OIL - ADD AN OIL FILLER NECK BRACE TO PREVENT CRACKING Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'-' RECORDS

PW4ENG 79-57 SB - RECOMMENDED COMP BRACKET, AIR/OIL COOLER - REPLACEMENT OF TO IMPROVE CLEARANCE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 79-58 SB 2 RECOMMENDED COMP TUBE, ASSY BRG #1,#1.5,#2 LR03 - INSTALLATION OF STRAINER ELEMENT Closed 06.Dec.1994 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'2' RECORDS

PW4ENG 79-59 SB 3 MANDATORY COMP PLUG, CHIP COLLECTOR - IMPROVED BODY VALVE AND LOCKING FEATURE Not Applicable by Serial Number This Document SUPERSEDES PW4ENG 79-16/SB Rev.5

PW4ENG 79-60 SB 3 RECOMMENDED COMP VALVE, A/O HX - IMPROVED ATTACHMENT HARDWARE Open This Document SUPERSEDES PW4ENG 79-60/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 79-61 SB - RECOMMENDED COMP TANK, FILLER NECK CONNECTOR - USE OF LONGER BOLTS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 79-62 SB 2 MANDATORY COMP FILTER, OIL MAIN - INSPECT AND REPLACE TO PREVENT CLOGGING BY CARBON Taskcard Controlled This Document is terminated with implementation of PW4ENG 72-525/SB Rev.9 This Document is terminated with implementation of PW4ENG 79-69/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 79-64 SB - RECOMMENDED COMP TUBE, BRG#3 PRESS (LP19) - NEW COUPLING NUT TO PRECLUDE TORQUE LOSS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 79-65 SB 2 RECOMMENDED COMP TANK, FILLER NECK - CHANGE TO MINIMIZE QUANTITY DIHEDRAL EFFECT Closed 21.Feb.2000 This Document SUPERSEDES PW4ENG 79-65/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 33567:00/H 5'751/C PerfRev.:'2' DOCS

PW4ENG 79-66 SB 2 RECOMMENDED COMP SHIELD, BRG#3 PRESS TUBE (LP18) - MODIFY TO INCREASE CLEARANCE Open This Document SUPERSEDES PW4ENG 79-66/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 79-67 SB 2 RECOMMENDED COMP TUBE, BRG.#4 (LP16) - REPLACE CLAMP BOLT TO Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 79-68 SB 2 RECOMMENDED COMP COOLER, FUEL OIL - IMPROVED CORE TO PRECLUDE INTERNAL LEAKAGE Rotable Driven - Accomplished This Document SUPERSEDES PW4ENG 79-68/SB Rev.1 Reason for this Status AUTO ASSIGNED

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 79-69 SB - RECOMMENDED COMP FILTER, OIL MAIN - 65 MICRON ELEMENT TO PRECLUDE CARBON CLOGGING Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-525/SB Rev.9 This Document terminates PW4ENG 79-62/SB Rev.2 This Document is terminated with implementation of PW4ENG 79-73/SB Rev.2 This Document is terminated with implementation of PW4ENG 79-89/SB Rev.- Reason for this Status This document was terminated the 07.Feb.1996 with implementation of the document PW4ENG 72-525/SB/9.

PW4ENG 79-70 SB 4 RECOMMENDED COMP SWITCH, MOF DELTA PRESS - P&W PROVIDED SWITCH TO PRECLUDE FALSE WARNS Closed 06.Dec.1994 This Document SUPERSEDES PW4ENG 79-70/SB Rev.3 This Document terminates PW4ENG 79-77/SB Rev.1 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 06.Dec.1994 13431:00/H 2'457/C PerfRev.:'4' RECORDS

PW4ENG 79-73 SB 2 RECOMMENDED COMP FILTER, OIL MAIN - 65/150 MICRON MESH TO REDUCE CARBON CLOGGING Closed 31.Dec.1971 This Document terminates PW4ENG 79-69/SB Rev.- This Document SUPERSEDES PW4ENG 79-73/SB Rev.- This Document is terminated with implementation of PW4ENG 79-89/SB Rev.- Reason for this Status This document was terminated the 28.May.2011 with implementation of the document PW4ENG 79-89/SB/-.

PW4ENG 79-74 SB - RECOMMENDED COMP BRACKET, HEATSHIELD OILTANK - INTRO TO DAMPEN VIBRATION Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 79-74/SB Rev.1

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 79-74 SB 1 RECOMMENDED COMP BRACKET, HEATSHIELD OILTANK - INTRO TO DAMPEN VIBRATION Closed 19.May.1998 This Document is terminated with implementation of PW4ENG 72-739/SB Rev.1 This Document SUPERSEDES PW4ENG 79-74/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'1' RECORDS

PW4ENG 79-75 SB 2 MANDATORY COMP TUBE, ASSY (LP01) - INTRO NEW FLEX HOSES AND PULSATION DAMPER Open This Document SUPERSEDES PW4ENG 79-75/SB Rev.1 This Document terminates PW4ENG A75-51-PT.E06/SB Rev.14 This Document terminates PW4ENG A75-51-PT.E07/SB Rev.14 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 79-76 SB 4 RECOMMENDED COMP TUBE, BRG#4 OIL PRESS&SCAVENGE - REROUTE TO PREVENT COLLECTION OF COKE Closed 19.May.1998 This Document terminates PW4ENG 72-436/SB Rev.6 This Document SUPERSEDES PW4ENG 79-76/SB Rev.3 Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 19.May.1998 27871:00/H 4'855/C PerfRev.:'4' RECORDS

PW4ENG 79-76 SB 5 RECOMMENDED COMP TUBE, BRG#4 OIL PRESS&SCAVENGE - REROUTE TO PREVENT COLLECTION OF COKE Open FAA 2012-06-18 , AMENDMENT 39-16999 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 79-77 SB 1 RECOMMENDED COMP SWITCH, MOF DELTA PRESS - P&W PROVIDED SWITCH TO PRECLUDE FALSE WARNS Information Only This Document is terminated with implementation of PW4ENG 79-70/SB Rev.4 This Document SUPERSEDES PW4ENG 79-77/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 79-78 SB 1 RECOMMENDED COMP GEARBOX, BOLTS - USE SOLID HEAD BOLT WHERE APPL TO AVOID CONFUSION Closed 21.Feb.2000 This Document SUPERSEDES PW4ENG 79-78/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks SIA SHOP 21.Feb.2000 33567:00/H 5'751/C PerfRev.:'1' DOCS

PW4ENG 79-79 SB 1 RECOMMENDED COMP FILTER, OIL MAIN (SOF) - IMPROVED RETENTION SPRING Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-525/SB Rev.9 This Document SUPERSEDES PW4ENG 79-79/SB Rev.- Reason for this Status This document was terminated the 07.Feb.1996 with implementation of the document PW4ENG 72-525/SB/9.

PW4ENG 79-81 SB 1 RECOMMENDED COMP TANK, OIL STORAGE - REDESIGNED DEAERATOR AND TUBE TO PRECLUDE OIL LOSS Open This Document SUPERSEDES PW4ENG 79-81/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 79-82 SB - RECOMMENDED COMP VALVE, OIL COOLER BYPASS - USE CORROSION RESISTANT BOLTS Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 79-83 SB 4 RECOMMENDED COMP SWITCH, MOF DELTA PRESS - NEW PRECISION SWITCH DUE TO CONTAMINATION Information Only This Document SUPERSEDES PW4ENG 79-83/SB Rev.3 Reason for this Status AUTO ASSIGNED

PW4ENG 79-84 SB - RECOMMENDED COMP HARNESS, AOC WIRING - IMPROVED CLAMPING TO IMPROVE MAINTENANCE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 79-85 SB - RECOMMENDED COMP VALVE, ENGINE A/O HX - IMPROVED INTERNAL WIRING TO ELIMINATE CHAFING Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG 79-86 SB - OPTIONAL COMP PUMP, LUB AND SCAVENGE - COMMON TO ALL MODELS ELIMINATING PULSE Rotable Driven - Not Accomplished DAMPER Reason for this Status AUTO ASSIGNED

PW4ENG 79-87 SB - RECOMMENDED COMP TUBE, LP02 - REDESIGNED TO PRECLUDE INTERFERENCE WITH THE LP03 HOSE Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG 79-88 SB 1 RECOMMENDED COMP PLUG, CHIP COLLECTOR - IMPROVED RESISTANCE TO OVERTORQUE AND WEAR Closed 11.Jan.2004 This Document SUPERSEDES PW4ENG 79-88/SB Rev.- Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 11.Jan.2004 50596:00/H 7'937/C PerfRev.:'1' DOCS

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 79-89 SB - RECOMMENDED COMP FILTER, OIL MAIN - 65/150 MICRON MESH WITH INCREASE CAPACITY Repetitive (Next Shop Visit) This Document terminates PW4ENG 79-69/SB Rev.- This Document terminates PW4ENG 79-73/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Interval(F):0/H or 0/C or 0/D or 0/ID Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'-' DOCS

PW4ENG 79-90 SB - RECOMMENDED COMP SWITCH, OIL DIFFERENTIAL PRESS - MOD TO PRECLUDE CONTACT CONTAMINATION Superseded (Not Applicable) This Document has been SUPERSEDED BY PW4ENG 79-90/SB Rev.1 Perform within an unlimited threshold.

PW4ENG 79-90 SB 1 MANDATORY COMP SWITCH, OIL DIFFERENTIAL PRESS - MOD TO PRECLUDE CONTACT CONTAMINATION Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 79-90/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 79-91 SB - RECOMMENDED COMP HOSE, ASSY LR05 - VACUUM TEST VERIFICATION TO PRVENT INTERNAL COLLAPSE Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 79-91/SB Rev.1

PW4ENG 79-91 SB 1 RECOMMENDED COMP HOSE, ASSY LR05 - VACUUM TEST VERIFICATION TO PRVENT INTERNAL COLLAPSE Open (Next Shop Visit) This Document SUPERSEDES PW4ENG 79-91/SB Rev.- Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Interval(F):0/H or 0/C or 0/D or 0/ID

PW4ENG 79-92 SB - RECOMMENDED COMP VALVE, OIL TANK - REPLACE THE FLAPPER VALVE PACKING Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG 79-93 SB - RECOMMENDED COMP VALVE, A/O HX - TORQUE MOTOR NOZZLE INSPECTION Information Only Reason for this Status AUTO ASSIGNED

PW4ENG 79-94 SB - OPTIONAL COMP PUMP, MAIN OIL SUPPLY - IMPROVED LUBE SPUR MATCHED GEARSET Superseded (Rotable Driven - Not Accomplished) This Document has been SUPERSEDED BY PW4ENG 79-94/SB Rev.1 Reason for this Status AUTO ASSIGNED

PW4ENG 79-94 SB 1 OPTIONAL COMP PUMP, MAIN OIL SUPPLY - IMPROVED LUBE SPUR MATCHED GEARSET Rotable Driven - Not Accomplished This Document SUPERSEDES PW4ENG 79-94/SB Rev.- Reason for this Status AUTO ASSIGNED

PW4ENG 79-95 SB - OPTIONAL COMP COOLER, AIR OIL (ENGINE) - IMPROVED EXTERNAL CORROSION PROTECTION Rotable Driven - Not Accomplished Reason for this Status AUTO ASSIGNED

PW4ENG A73-214 SB - RECOMMENDED COMP FADEC - PULSE WIDTH MODULATOR SUSPECT UNITS, IDENTIFICATION OF Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG A73-214/SB Rev.1

PW4ENG A73-214 SB 1 RECOMMENDED COMP FADEC - PULSE WIDTH MODULATOR SUSPECT UNITS, IDENTIFICATION OF Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 73-214/SB Rev.2 This Document SUPERSEDES PW4ENG A73-214/SB Rev.-

PW4ENG A73-215 SB - RECOMMENDED COMP FADEC - PULSE WIDTH MODULATOR GR1 SUSPECT UNITS, MANAGEMENT PLAN OF Superseded (Superseded) This Document has been SUPERSEDED BY PW4ENG 73-215/SB Rev.1

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG SB 14 MANDATORY COMP EXTERNALS, AIR - 2.9 BLEED VALVE SUPPLY LINES INSPECTION Not Applicable by Serial Number A75-51-PT.B01 This Document is terminated with implementation of PW4ENG 75-37/SB Rev.2 This Document is terminated with implementation of PW4ENG 75-41/SB Rev.3

PW4ENG SB 14 MANDATORY COMP EXTERNALS, FUEL - MAIN FUEL LINE AND BRACKET INSPECTION Not Applicable by Serial Number A75-51-PT.C01 This Document is terminated with implementation of PW4ENG 73-63/SB Rev.4

PW4ENG SB 14 MANDATORY COMP EXTERNALS, HYDRAULIC - PRESS AND RETURN LINE INSPECTION Not Applicable by Serial Number A75-51-PT.D01 This Document is terminated with implementation of PW4ENG 75-45/SB Rev.4 This Document is terminated with implementation of PW4ENG 75-52/SB Rev.2

PW4ENG SB 14 MANDATORY COMP EXTERNALS, LUBRICATION - (LB03) BRG#3 BREATHER LINE INSPECTION Closed 31.Dec.1971 A75-51-PT.E01 This Document is terminated with implementation of PW4ENG 72-455/SB Rev.3 Reason for this Status This document was terminated the 07.Dec.1994 with implementation of the document PW4ENG 72-455/SB/3.

PW4ENG SB 14 MANDATORY COMP EXTERNALS, LUBRICATION - (LP19) BRG#3 OIL PRESS TUBE CONNECTOR INSP. Not Applicable by Serial Number A75-51-PT.E02 This Document is terminated with implementation of PW4ENG 79-52/SB Rev.3

PW4ENG SB 14 MANDATORY COMP EXTERNALS, LUBRICATION - (LP31) OIL PRESSURE TRIM TUBE INSPECTION Not Applicable by Serial Number A75-51-PT.E03 This Document is terminated with implementation of PW4ENG 79-52/SB Rev.3

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG SB 14 MANDATORY COMP EXTERNALS, LUBRICATION - (LR04) BRG #3 OIL SCAVENGE LINE COUPLING NUT Closed 31.Dec.1971 A75-51-PT.E04 This Document is terminated with implementation of PW4ENG 72-450/SB Rev.7 Reason for this Status This document was terminated the 21.May.2005 with implementation of the document PW4ENG 72-450/SB/7.

PW4ENG SB 14 MANDATORY COMP EXTERNALS, LUBRICATION - (LP09) AGB OIL PRESSURE LINE INSPECTION Closed 31.Dec.1971 A75-51-PT.E05 This Document is terminated with implementation of PW4ENG 79-54/SB Rev.3 Reason for this Status This document was terminated the 07.Dec.1994 with implementation of the document PW4ENG 79-54/SB/3.

PW4ENG SB 14 MANDATORY COMP EXTERNALS, LUBRICATION - (LP01) MAIN OIL PRESSURE LINE INSPECTION Open A75-51-PT.E06 This Document is terminated with implementation of PW4ENG 79-75/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG SB 14 MANDATORY COMP EXTERNALS, LUBRICATION - (LR04/LR05) BRG#3/#4 OIL SCAV.LINE INSPECTION Open A75-51-PT.E07 This Document is terminated with implementation of PW4ENG 79-75/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG SB 14 MANDATORY COMP EXTERNALS, COMPRESSOR - 2.5 BLEED VALVE INSPECTION Closed 31.Dec.1971 A75-51-PT.F01 This Document is terminated with implementation of PW4ENG 72-659/SB Rev.2 Reason for this Status This document was terminated the 20.May.1998 with implementation of the document PW4ENG 72-659/SB/2.

PW4ENG SB 14 MANDATORY COMP EXTERNALS, COMPRESSOR - STATOR VANE ACTUATOR BRACKET INSPECTION Closed 31.Dec.1971 A75-51-PT.G01 This Document is terminated with implementation of PW4ENG 72-483/SB Rev.2 Reason for this Status This document was terminated the 07.Dec.1994 with implementation of the document PW4ENG 72-483/SB/2.

PW4ENG SB 14 MANDATORY COMP EXTERNALS, COMPRESSOR - STATOR VANE ACTUATOR BRACKET LOOSENESS Closed 31.Dec.1971 A75-51-PT.G02 This Document is terminated with implementation of PW4ENG 72-534/SB Rev.2 Reason for this Status This document was terminated the 21.May.2005 with implementation of the document PW4ENG 72-534/SB/2.

PW4ENG SB 14 MANDATORY COMP EXTERNALS, COMPRESSOR - STATOR VANE ACTUATOR BELLCRANK LEVER SET Open A75-51-PT.G03 This Document is terminated with implementation of PW4ENG 72-495/SB Rev.1 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG SB 14 MANDATORY COMP EXTERNALS, COMPRESSOR - STATOR VANE UNISON RING CLEVIS AND RODS Open A75-51-PT.G04 This Document is terminated with implementation of PW4ENG 72-506/SB Rev.2 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG SB 14 MANDATORY COMP EXTERNALS, HARNESS - FMU CONNECTOR Closed 31.Dec.1971 A75-51-PT.H01 This Document is terminated with implementation of PW4ENG 73-148/SB Rev.3 Reason for this Status This document was terminated the 22.May.2011 with implementation of the document PW4ENG 73-148/SB/3.

PW4ENG SB 14 MANDATORY COMP EXTERNALS, HARNESS - 2.5 BLEED AND IDG A/O COOLER CONNECTOR Closed 31.Dec.1971 A75-51-PT.H02 This Document is terminated with implementation of PW4ENG 73-111/SB Rev.2 Reason for this Status This document was terminated the 26.Sep.1992 with implementation of the document PW4ENG 73-111/SB/2.

PW4ENG SB 14 MANDATORY COMP EXTERNALS, HARNESS - THERMOCOUPLE ASSY FUEL Open A75-51-PT.H03 This Document is terminated with implementation of PW4ENG 73-161 PT.A/SB Rev.3 Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

PW4ENG SB 14 MANDATORY COMP EXTERNALS, HARNESS - THERMOCOUPLE ASSY FUEL Not Applicable by Serial Number A75-51-PT.H04 This Document is terminated with implementation of PW4ENG 73-118/SB Rev.4

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Document-Number Type Rev Compliance A|C Subject Status PW4ENG SB 14 MANDATORY COMP EXTERNALS, HARNESS - W5/W6 INTERFACE CONNECTORS Closed 31.Dec.1971 A75-51-PT.H05 This Document is terminated with implementation of PW4ENG 73-192/SB Rev.- Reason for this Status This document was terminated the 28.May.2011 with implementation of the document PW4ENG 73-192/SB/-.

PW4ENG P0351 SB 12 INFORMATION COMP PLATE, IDENTIFICATION - PROCUREMENT POLICY Information Only This Document SUPERSEDES PW4ENG P0351/SB Rev.11 Reason for this Status AUTO ASSIGNED

PW4ENG P3144 SB - INFORMATION COMP LINER, FAN EXIT - WASHERS "D"-SHAPED SUBTITUTION BY ROUND-SHAPED Information Only Reason for this Status AUTO ASSIGNED

PW4ENG P3198 SB - INFORMATION COMP BEARING, BRG#3 - OPTIONAL BRG WITH SLIGHTLY HIGHER TOLERANCES Information Only Reason for this Status AUTO ASSIGNED

PW4ENG-238 SB 63 INFORMATION COMP OIL - LUBRICANT SYNTHETIC - APPROVAL OF Information Only Reason for this Status AUTO ASSIGNED

SB-73-55 SB 3 OPTIONAL COMP W1 AND W2 EEC WIRING HARNESS MODIFICATION-INSTALLATION OF JUMPER WIRE Open S FOR PW4000 POWERED BOEING ACFT FOR ELECTRONIC ENGINE CONTROL EEC Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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Document-Number Type Rev Compliance A|C Subject Status SB-73-60 SB - OPTIONAL COMP W4 AND W5 WIRING HARNESS MODIFICATION-DEACTIVATION OR REMOVAL OF TRC Open AND TBVCA CIRCUIT BRANCHES FOR PW4000 POWERED BOEING ACFT TO ALLOW Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

SI 17F-09 SB - RECOMMENDED COMP VANE, STG.3 LPT - DIMENSIONAL INSPECTION Repetitive (Next Shop Visit) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'-' DOCS

SI 19F-09 SB - RECOMMENDED COMP VANE, STG.3 LPT - DIMENSIONAL INSPECTION Repetitive (Next Shop Visit) Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit Perf Dim1 (D) Perf Dim2 Perf Dim3 W/O, Ref.-Doc Remarks ESA SHOP 27.May.2011 75448:00/H 12'181/C PerfRev.:'-' DOCS

SI 49F-96 SB 00 MANDATORY COMP "E1E" - ENGINE SURGE MARGIN DIAGNOSTIC TESTING FAA 2003-19-15 Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-755/SB Rev.7 This Document is terminated with implementation of PW4ENG 72-757/SB Rev.5 Reason for this Status This document was terminated the 21.May.2005 with implementation of the document PW4ENG 72-755/SB/7.

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Document-Number Type Rev Compliance A|C Subject Status SI 7F-96 SB 00 MANDATORY COMP COOL BODIE - ENGINE SURGE MARGIN DIAGNOSTIC TESTING FAA 2003-19-15 Closed 31.Dec.1971 This Document is terminated with implementation of PW4ENG 72-755/SB Rev.7 This Document is terminated with implementation of PW4ENG 72-757/SB Rev.5 Reason for this Status This document was terminated the 21.May.2005 with implementation of the document PW4ENG 72-755/SB/7.

135F-01 SI - OPTIONAL COMP SEAL, INNER AIR - HPT STAGE 1 BORESCOPE INSPECTION Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

26F-09 SI - OPTIONAL COMP TUBE, BRG#3 - BORESCOPE INSPECTION THROUGH AP22 Open Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

747-SL-73-045 SL - RECOMMENDED COMP PW4000 PERMANENT MAGNETIC ALTERNATOR (PMA) COOLING HOSE Open REPLACEMENT Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

767-SL-73-028 SL - RECOMMENDED COMP PW4000 PERMANENT MAGNETIC ALTERNATOR (PMA) COOLING HOSE Open REPLACEMENT Due Dim1 (D) Due Dim2 Due Dim3 New W/O Time-Requirement of Document No limit

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