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SERVICE BULLETIN Citation REVISION Revision 4 SB650-29-10

TRANSMITTAL SHEET

This sheet transmits Revision 4 to SB650-29-10. A. Removes the 67950-1 Valve listed in the SB650-29-10-0 Kit as a result of it being previously installed on some airplanes. B. Adds a SB650-29-10-3 Kit to include the 67950-1 Valve so it can be ordered separately if necessary. C. Removes Figure 4 that showed the weight and balance chart. The weight and balance information is shown in the CHANGE IN WEIGHT AND BALANCE section. NOTE: This revision replaces the original issue of SB650-29-10 and all previous revisions in their entirety. NOTE: Change bars and pointing hands are not used in this publication to denote revised material. This transmittal sheet provides a complete description of the changes made by this revision, except for editorial changes.

REVISION COMPLIANCE

NO EFFECT. Airplanes previously modiﬁed by this service bulletin are not affected by this revision.

SUMMARY OF REVISIONS

Original Issue Sep 26/1988 Revision 1 Apr 19/1989 Revision 2 Sep 15/1989 Revision 3 Sep 15/2003 Revision 4 Aug 1/2007

SERVICE BULLETIN Citation REVISION Revision 3 SB650-29-10

TRANSMITTAL SHEET

This sheet transmits Revision 3 to SB650-29-10. A. Revises Table 1 to add the "Annunciator Panel Modification Part Number (Before Modification)" Part Number 6298088-26. B. Revises Table 1 to add the "Annunciator Panel Modification Part Number (After Modification)" Part Number 6298088-33. NOTE: This revision replaces the original issue of SB650-29-10 and all previous revisions in their entirety. NOTE: Change bars and pointing hands are not used in this publication to denote revised material. This transmittal sheet provides a complete description of the changes made by this revision, except for editorial changes.

REVISION COMPLIANCE

NO EFFECT. Airplanes previously modiﬁed by this service bulletin are not affected by this revision.

SUMMARY OF REVISIONS

Original Issue Sep 26/1988 Revision 1 Apr 19/1989 Revision 2 Sep 15/1989 Revision 3 Sep 15/2003

Citation SERVICE BULLETIN SB650-29-10

TITLE

HYDRAULIC POWER - AUXILIARY HYDRAULIC PUMP REPLACEMENT

EFFECTIVITY

MODEL SERIAL NUMBERS

650 -0001 thru -0155

The intent of this service bulletin has been in incorporated on production airplanes -0156 and On.

REASON

To provide for initial spares replacement of a 9914119-1 or 9914119-3 Auxiliary Hydraulic Pump.

DESCRIPTION

This service bulletin provides parts and instructions to modify the auxiliary hydraulic pump support shelf to accommodate the new pump, install the new pump assembly, replace the auxiliary pump pressure dump valve, and replace the AUX HYD PUMP ON legend on the master warning annunciator panel to read AUX HYD PRESS.

COMPLIANCE

OPTIONAL. This service bulletin must be accomplished on initial spares replacement of a 9914119-1 or 9914119-3 Auxiliary Hydraulic Pump.

FLIGHT CREW OPERATIONS

No Change.

APPROVAL

FAA approval has been obtained on technical data in this publication that affects airplane type design.

This information shall be considered an amendment to the Cessna Manufacturer's Maintenance Manual.

Sep 26/1988 650-29-10 Revision 4 - Aug 1/2007 Page 1 of 13

MANPOWER

WORK PHASE MAN-HOURS Replacement

MATERIAL - Cost and Availability

PART NUMBER AVAILABILITY COST SB650-29-10–0 * * SB650-29-10-1 * * SB650-29-10-2 * * SB650-29-10-3 * *

* Refer to the attached Service Bulletin Supplemental Data sheet for man-hours, material cost and availability, and warranty information.

TOOLING

None

CHANGE IN WEIGHT AND BALANCE

MODEL 650 WEIGHT INCREASE +3.4 Pounds RESULTANT MOMENT +1577 Inch-Pounds MOMENT/100 +15.8

REFERENCES

SB650-31-9, Indicating/Recording System - STAB DE-ICE Annunciator Light Replacement, must be accomplished prior to or concurrently with this service bulletin.

PUBLICATIONS AFFECTED

Cessna Model 650 Citation III Maintenance Manual

CessnaModel650CitationIIIIllustratedPartsCatalog

Cessna Model 650 Citation III Wiring Diagram Manual

ACCOMPLISHMENT INSTRUCTIONS 1. Prepare the airplane for maintenance. A. Make sure that all switches are in the OFF/NORM position. B. Disconnect electrical power from the airplane. (1) Disconnect the airplane battery. (2) Disconnect external electrical power. C. Attach maintenance warning tags to the battery and external power receptacle that have "DO NOT CONNECT ELECTRICAL POWER - MAINTENANCE IN PROGRESS" writtenonthem.

Sep 26/1988 650-29-10 Revision 4 - Aug 1/2007 Page 2 Citation SERVICE BULLETIN SB650-29-10

2. Verify that all hydraulic pressure is relieved from the system. A. Attach a maintenance warning tag to the hydraulic ground service ports stating: WARNING: DO NOT CONNECT HYDRAULIC POWER - MAINTENANCE IN PROGRESS. B. Disengage the AUX HYD PUMP circuit breaker on the left cockpit circuit breaker panel. 3. (Refer to Figure 1, Sheet 1, Detail A, BEFORE MODIFICATION.) Remove the existing hydraulic pump as follows: A. Disconnect the electrical connector PT100 from the pump motor. B. Attach identification labels to each hose connected to the pump (if not already clearly identified), then disconnect the hoses from the pump. C. Cut the safety wire and remove the four attaching bolts from the pump base. Remove the pump from the shelf. Keep the bolts and washers for installation. D. Return the removed 9914119-1 or 9914199-3 Pumps for credit to: Citation Parts Distribution, Cessna Aircraft Company, 7121 Southwest Boulevard, Wichita, KS 67215, USA 4. (Refer to Figure 1, Sheet 3, View A-A.) Modify the auxiliary hydraulic pump shelf assembly as follows: A. Remove the existing nutplates from the shelf by drilling out the attaching rivets. B. Trim the flange from the inboard end of the shelf as shown. C. Install the 6217205-2 Spacer and 6217205-3 Stiffener as shown. D. Drill 0.25 inch diameter holes as shown centered on the inboard rivet holes previously used to attach the nutplates. NOTE: If the nutplates were not parallel to the sides of the shelf, locate the 0.25 inch holes to align with the rivet holes in the pump base. E. Install MS21052L4 Nutplates as shown to match the new 0.25 inch holes. F. Fill the other nutplate rivet holes in the shelf with MS20426A3-3.5 Rivets. NOTE: Leave the 0.25 inch diameter holes in the shelf open. 5. Install the 6217110-8 Pump Assembly as follows: A. (Refer to Figure 1, Sheet 3, Detail B.) Install the fittings and hardware (supplied with the 6217110-8 PumpAssembly)intheportsofthepumpasshown. B. (Refer to Figure 1, Sheet 2, Detail A, AFTER MODIFICATION.) Place the new pump assembly on the shelf and attach with four existing bolts and washers. Safety wire the bolt heads with 0.032 stainless steel safety wire. (Refer to the Maintenance Manual, Chapter 20, Safetying - Maintenance Practices.) C. Identify and reconnect the hydraulic hoses. Route and clamp as shown. D. Attach electrical connector PT100 to the new pump motor. Install a clamp on the electrical wires as shown, and ensure that the wires do not interfere with the hose routing. E. Inspect the hose routing to ensure that the hoses do not interfere with each other, or with nearby structure or components. Install additional clamps as required to clear interference. 6. (Refer to Figure 2, Detail A.) Replace the auxiliary hydraulic pump pressure dump valve as follows: NOTE: If a 67950-1 Valve was previously installed as a spare replacement for the 67950 Auxiliary Hydraulic Pump Pressure Dump Valve, do not replace the valve. After verifying that a 67950-1 Valve is installed, proceed to Step 7. A. Remove the baggage compartment floor panels to gain access to the auxiliary hydraulic pump pressure dump valve. B. Disconnect electrical connector PT132 from the dump valve.

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C. Disconnect the hydraulic lines from the valve. Cap the lines to prevent contamination. D. Remove the 67950 Valve by removing the attaching bolts, washers, and spacers. Retain attaching hardware for installation of the new valve. E. Remove the fittings from the 67950 Valve and install them in the 67950-1 Valve with new MS28778-4 O-Rings. F. Install the new 67950-1 Valve with existing bolts, washers, and spacers. G. Connect the hydraulic lines to the fittings in the new valve. H. Attach the connector PT132 to the valve. 7. Refer to Figure 3, Detail A.) Modify the master warning annunciator panel as follows: A. Disengage the WARN LITES 1 and WARN LITES 2 circuit breakers, located on the left circuit breaker panel. B. Remove the cover from the center instrument panel. C. Remove the attaching screws from the master warning annunciator panel, slide the panel out, and disconnect the electrical connector. D. Remove the HYD VOL LOW/AUX HYD PUMP ON cap assembly and replace as follows: NOTE: Read the original equipment part number (from the manufacturers identification placard) to determine the required replacement cap assembly. (1) For 9914061-4 Annunciator Panels, install a 711-7502-053 Cap Assembly. (2) For 9914061-5 or -6 Annunciator Panels, install a 99-XXX-6B3-23916 Cap Assembly. E. (Refer to Table 1.) Steel stamp the annunciator panel modification dash number (selected from Table 1) on a 6298088-22 Placard, then apply the placard to the modified annunciator panel. NOTE: Remove the existing annunciator panel modification placard, if installed. NOTE: If this service bulletin is being incorporated concurrently with SB650-31-9, first determine the modification part number from Table 1 in SB650-31-9. Then find that number in the first column of Table 1 in this service bulletin and read across to determine the modification part number for the annunciator panel. NOTE: If SB650-52-19 is being incorporated concurrently with this service bulletin, determine the modification part number as follows (after determining the modification part number from SB650-31-9, if it is also being accomplished): Refer to Table 1 in either service bulletin and determine the modification part number for the service bulletin only. Using that modification part number as the original equipment part number, refer to Table 1 in the other service bulletin to determine the modification part number as a result of incorporating both service bulletins. Stamp the dash number on the 6298088-22 Placard.

Table 1. Annunciator Panel Modiﬁcation Part Numbers

ANNUNCIATOR PANEL MODIFICATION PART MODIFICATION PART NUMBER (AFTER NUMBER (BEFORE MODIFICATION) MODIFICATION) 6298088-26 6298088-33 6298088-29 6298088-36 6298088-30 6298088-32 6298088-35 6298088-33 6298088-37 6298088-338

NOTE: * Steel stamp dash number on a 6298088-22 Placard before installing on annunciator panel.

Sep 26/1988 650-29-10 Revision 4 - Aug 1/2007 Page 4 Citation SERVICE BULLETIN SB650-29-10

F. Reinstall the master warning annunciator panel in the center instrument panel and engage WARN LITES 1 and WARN LITES 2 circuit breakers. 8. Connect the airplane battery. 9. Engage the AUX HYD PUMP circuit breaker and remove maintenance warning tag from the hydraulic ground service ports. 10. Perform an operational test of the auxiliary hydraulic pump as follows: CAUTION: ENSURE THAT THE AUXILIARY HYDRAULIC PUMP SUCTION LINE IS FILLED WITH HYDRAULIC FLUID BEFORE OPERATING THE PUMP. THE PUMP MAY BE DAMAGED IF OPERATED WITHOUT FLUID IN THE SUCTION LINE. NOTE: Be prepared to contain or absorb hydraulic fluid that will flow from the suction hose when it is loosened to bleed the suction line. A. Connect a hydraulic ground service unit to the ground service quick disconnect ports and operate the ground service unit at low pressure (approximately 1000 psi). B. While the ground service unit is operating, loosen the auxiliary hydraulic pump suction hose at the elbow fitting on the auxiliary hydraulic pump suction port. Allow fluid to run from the hose until a steady stream flows, indicating that all air is out of the suction line. C. Tighten the hose connection and shutdown the ground service unit. D. Service the hydraulic reservoir. E. Position the battery switch to ON. F. Position the auxiliary hydraulic pump switch to ON. CAUTION: IF THE HYDRAULIC SYSTEM PRESSURE DOES NOT INDICATE 3000 PSI WITHIN 30 SECONDS AFTER TURNING ON THE PUMP, SHUT OFF THE PUMP. THEPUMPWILLBEDAMAGEDIFRUNDRY. (1) Verify that the auxiliary hydraulic pump operates and that the hydraulic pressure gage indicates 3000 psi within 30 seconds. If not, shut off the auxiliary hydraulic pump immediately. Troubleshoot the system and correct the problem before operating the pump again. (2) Check for leaks at the auxiliary hydraulic pump fittings and hose connections. (3) Verify the AUX HYD PRESS legend on the annunciator panel is illuminated. G. Position the auxiliary hydraulic pump switch and battery switch to OFF. 11. Bleed the hydraulic system using the auxiliary hydraulic pump. (Refer to the Maintenance Manual, Chapter 12, Hydraulic System Reservoir - Servicing.) A. Check for leaks at the auxiliary hydraulic pump pressure dump valve fittings and line connections. 12. Perform the Auxiliary Hydraulic Pump Electrical Control Functional Test. (Refer to the Maintenance Manual, Chapter 27, Spoiler/Speedbrake - Adjustment/Test.) 13. Install the baggage compartment floorboards. 14. Remove maintenance warning tags from battery and external power receptacle. 15. Record that this service bulletin has been completed. A. Complete a Maintenance Transaction Report. B. Put a copy of the completed Maintenance Transaction Report in the airplane logbook. C. Send a copy of the completed Maintenance Transaction Report to: CESCOM, P.O. Box 7706, Wichita, KS 67277.

Sep 26/1988 650-29-10 Revision 4 - Aug 1/2007 Page 5 Citation SERVICE BULLETIN SB650-29-10

MATERIAL INFORMATION NOTE: The parts included in this service bulletin cover installation for one airplane.

NEW P/N QUAN- KEY WORD OLD P/N INSTRUCTIONS/ TITY DISPOSITION SB650-29-10-0 1 consisting of the following parts: NAS1149F0332P 1 Washer None MS20426AD3-4A 5Rivet None MS20426AD3-5A 5 Rivet None MS20426A3-3.5 5 Rivet None MS20470AD4-5A 5 Rivet None MS21042L3 3 Nut None MS21052L4 4 Nutplate MS21047L4 Discard MS21919WDG6 1 Clamp None MS21919WDG8 4 Clamp None MS27039-1-08 3 Screw None MS28778-4 4 O-Ring Same Discard 6217110-8 1 Pump Assembly 9914119-1 or Return to Cessna for 9914119-3 credit *** **AN6289-6 1Nut **AN894D4-2 1 Bushing (Alternate MS21915-4-2) **MS21916-6-4 1 Reducer **MS21916D4-3 1 Reducer **MS21926-6 1Elbow **MS28773-06 1 Retainer **MS28778-2 1 O-Ring **MS28778-3 1 O-Ring **MS28778-4 1 O-Ring **MS28778-6 2 O-Ring **9914097-4 1 Check Valve **9914119-4 1Pump 6217205-2 1 Spacer None 6217205-3 1 Stiffener None

Sep 26/1988 650-29-10 Revision 4 - Aug 1/2007 Page 6 Citation SERVICE BULLETIN SB650-29-10

NEW P/N QUAN- KEY WORD OLD P/N INSTRUCTIONS/ TITY DISPOSITION 6298088-22 1 Placard None SB650-29-10 1 Instructions

NOTE: ** Component parts of 6217110-8 Pump Assembly. NOTE: *** All work must be completed and the Citation Credit Claim Form submitted, along with any parts to be returned to Citation Parts Distribution.

Return the removed 9914119-1 or 9914119-3 Pump for credit to: Citation Warranty Administration, 7121 Southwest Boulevard, Wichita, KS 67215, USA For airplanes equipped with a 9914061-4 Master Warning Annunciator Panel (manufactured by RA-NAV Laboratories), order the kit that follows in addition to SB650-29-10-0:

NEW P/N QUAN- KEY WORD OLD P/N INSTRUCTIONS/ TITY DISPOSITION SB650-29-10-1 1 Kit, consisting of the following parts: 711-7502-053 1 Push Button Cap 711-7502-034 Discard

For airplanes equipped with a 9914061-5 or -6 Master Warning Annunciator Panel (manufactured by International Avionics, Inc.), order the kit that follows in addition to SB650-29-10-0:

NEW P/N QUAN- KEY WORD OLD P/N INSTRUC- TITY TIONS/ DIS- POSITION SB650-29-10-2 1 Kit, consisting of the following parts: 99-XXX-6B3-23916 1 Push Button Cap 99-XXX-6B3-16033 Discard

For airplanes equipped with a 67950 Valve, order the kit that follows in addition to SB650-29-10-0:

NEW P/N QUAN- KEY WORD OLD P/N INSTRUC- TITY TIONS/ DIS- POSITION SB650-29-10-3 1 Kit, consisting of the following parts: 67950-1 1 Valve-Auxiliary Pump 67950 Return to Pressure Dump Cessna for credit***

NOTE: *** All work must be completed and the Citation Credit Claim Form submitted, along with any parts to be returned to Citation Parts Distribution.

Return the removed 67950 Valve for credit to: Citation Warranty Administration, 7121 Southwest Boulevard, Wichita, KS 67215, USA

Sep 26/1988 650-29-10 Revision 4 - Aug 1/2007 Page 7 Citation SERVICE BULLETIN SB650-29-10

Figure 1. Auxiliary Hydraulic Pump Replacement (Sheet 1)

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Figure 1. Auxiliary Hydraulic Pump Replacement (Sheet 2)

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Figure 1. Auxiliary Hydraulic Pump Replacement (Sheet 3)

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Figure 2. Auxiliary Hydraulic Pump Pressure Pump Valve Replacement (Sheet 1)

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Figure 2. Auxiliary Hydraulic Pump Pressure Pump Valve Replacement (Sheet 2)

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Figure 3. Auxiliary Hydraulic Pressure Annunciator Legend Change (Sheet 1)

Sep 26/1988 650-29-10 Revision 4 - Aug 1/2007 Page 13

SERVICE BULLETIN Citation SUPPLEMENTAL DATA SB650-29-10

TITLE

HYDRAULIC POWER - AUXILIARY HYDRAULIC PUMP REPLACEMENT

EFFECTIVITY

MODEL SERIAL NUMBERS

650 -0001 thru -0155

The intent of this service bulletin has been incorporated on production airplanes -0156 and On.

MANPOWER

WORK PHASE MAN-HOURS Replacement Quoted on Request (Consult Citation Service Facility)

MATERIAL - Cost and Availability

PART NUMBER AVAILABILITY COST SB650-29-10-0 * * SB650-29-10-1 * * SB650-29-10-2 * * SB650-29-10-3 * *

* Please contact Citation Parts Distribution for current cost and availability of parts listed in this service bulletin. Phone at 1-800-835-4000 (Domestic) or 1-316-517-7542 (International). Send Email to: [email protected] or telefax at 1-316-517-7711.

Based on availability and lead times, parts may require advanced scheduling.

Sep 26/1988 650-29-10 Revision D - Aug 1/2007 Page 1 of 1