737 Group Service Bulletin
Total Page:16
File Type:pdf, Size:1020Kb
sofV--O Commercial Airplane 737 Group Service Bulletin -- ALERT_ -- _- Number 737-53A1166 Date: June 30, 1994 Summary ATA System: 5311 | SUBJECT: FUSELAGE - FRAMES -BODY STATION 727 OUTBOARD CHORD AT STRINGER 18A, INSPECTION AND PREVENTIVE MODIFICATION BACKGROUND inspection again. Do the inspection at the times given in the Compliance Four operators sent reports of section until the preventive cracks in the modification is installed. If the preventive outboard chord of the frame at Body Station (BS) modification 727 where is installed, no more inspections per Stringer 18A is attached. The reports this bulletin are necessary. were of eight airplanes with 39,000 to 54,100 flight hours and 56,200 to 73,200 flight cycles. The cracks More work is necessary for operators that have were caused by fatigue that was started by replaced the outboard fretting of adjacent parts. Operators chord of the frame at BS 727 have also sent as shown in Service Bulletin (SB) 737-53-1088 reports of cracks in the outboard chord of Stringer 18-A. (refer to Compliance). COMPLIANCE The changes shown in this service bulletin will decrease the probability of these cracks. This area This bulletin has a Flight is a primary structural element. Safety Inspection Program Operation with that is the minimum necessary to keep the structural cracks in the frame will decrease the structural integrity of integrity of this area. the outboard chord. For airplanes with 27,000 flights to 50,000 flights, do As part of a service bulletin validation program, the the inspection inspection, frame initially within 4,500 flights after you chord replacement, and preventive get this bulletin. Do the inspection modification was completed on airplane again at intervals PG576 of 15,000 flights until the airplane collects more than (Group 2) before the initial release of this bulletin. 50,000 flights. ACTION For airplanes with 50,000 flights to 60,000 flights, do the inspection Make an inspection initially within 2,500 flights after you of the outboard chord of the get this bulletin. Do the inspection frame at BS 727 where Stringer 18A again at intervals is attached. of 7,500 flights until the airplane collects more than Look for cracks. Do the inspection at the times 60,000 flights. given in the Compliance section. For airplanes with 60,000 flights to 70,000 flights, do Also, make an inspection of the outboard chord of the inspection Stringer 18A at initially within 1,500 flights after you Station 727. If cracks are found in get this bulletin. Do the inspection the outboard chord of Stringer 18A, again at intervals get repair of 5,000 flights until the airplane collects more than instructions from Boeing. 70,000 flights. If cracks are found in the outboard chord of the For airplanes frame at BS 727, with more than 70,000 flights, do the install the time limited repair or inspection initially within 500 replace the chord and, optionally, flights after you get this install the bulletin. Do the inspection again at intervals of preventive modification. If no cracks are found, 3,000 flights. install the preventive modification or do the BOEING COMMERCIALAIPLANE GROUP P.O. BOX 3707 8EATTLE WASHINGTON YR24-2207 Summary Page 1 of 2 BOEING SERVICE BULLETiN 737-53A1166 For airplanes with the lower part of the chord EFFECTIVITY replaced by SB 737-53-1088, do the inspection at the intervals shown above. All 737-100 and 737 -200 airplanes. Line Numbers 1-999, in 4 groups. For airplanes with the upper part of the chord replaced by SB 737-53-1088, do the inspection MANPOWER initially within 30,000 flight cycles after the chord was replaced. Do the inspection again at the Refer to Paragraph I.F. Manpower. intervals shown above for flight cycles after the chord was replaced. MATERIAL INFORMATION Boeing Supplied Kits Refer to Paragraph k.G.. Material - Price and Availability. EXAMINE AREA AROUND STRINGER 18-A TWO FASTENER HOLES (ON SOME AIRPLANES STA THE OUTER CHORD OF 727 STRINGER 18-A IS A FLAT STRAP) 000 TYPICA 0 0 CRACK 00 EXAMINE FORWAR EDGE OF FLANGE 0 0 EXAMINE SURFACE OF S-18A AROUND TWO FASTENER HEADS LEFT SIDE SHOWN RIGHT SIDE OPPOSITE (WIN6-TO-BODY FAIRING NOT SHOWN) Jun 30/94 Summary Page 2 of 2 D -XfW- O Commercial Airplane 737 Group Service Bulletin -ALERT- Number: 737-53A1166 Date: June 30. 1994 ATA System: 5311 SUBJECT: FUSELAGE - FRAMES - BODY STATION 727 OUTBOARD CHORD AT STRINGER 18A, INSPECTION AND PREVENTIVE MODIFICATION THIS SERVICE BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH l.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED SERVICE BULLETIN OR SOLD, SEND THIS TO THE NEW OPERATOR, IF APPLICABLE SPARES HAVE BEEN THIS SERVICE BULLETIN TO THE NEW OWNER. SOLD, SEND I. PLANNING INFORMATION A. Effectivity 1. Airplanes Refer to Service Bulletin Index Document D6-19567, Part 3 for Airplane Variable Number, Number, and Serial Number data. Line This service bulletin is for the airplanes shown below. IDENTIFICATION BY CUSTOMER, CUSTOMER CODE, GROUP AND VARIABLE NUMBER AER LINGUS (ARL) 2 PG255 PG573 PY322 3 PK029 PK641-PK642 PY281 AERO CONTROLS, INC (AEO) 2 PG629 AERO COSTA RICA (AOR) 3 PK872-PK873 AEROLINEAS ARGENTINAS (ARG) 2 PH705-PH708 PH741-PH742 PY007 3 PH743 PK102-PK103 AERON AVIATION (AAV) 2 PJ072 AIR ALGERIE (ALG) 3 PK361 PK631 PK633-PK634 PL717-PL725 PY051-PY053 Jun 30/94 737-53A1 166 Page 1 of 44 BOEING SERVICE BULLETIN 737-53A1166 AIR ATLANTA ICELANDIC (AID) 2 PY002 AIR FRANCE (AFA) 3 PL502-PL503 PN101-PN112 AIR GABON S.A. (GBN) 3 PY191 AIR GUINEE (GNE) 3 PY651 AIR MADAGASCAR (MAD) 2 PG375 3 PL793 AIR MALTA (MLT) 3 PL621-PL623 AIR NAURU (NAU) 3 PK356 PK581 PY286 AIR NEW ZEALAND, LTD. (ANZ) 3 PJ009 PJ117-PJ119 PK214 PY741 AIR ONE AB SWEDEN (AOW) 3 PJ003 AIR SOUTH. INC. (SOT) 3 PK462 PK466 AIR TANZANIA (TNZ) 3 PY611-PY612 AIR TOULOUSE INTERNATIONAL (TOL) 2 PL716 AIR ZAIRE (ZAI) 3 PY1il PY113 ALASKA AIRLINES (ASA) 3 PY112 PY134-PY135 PY270 PY461-PY462 ALBATROS AIRLINES (ABS) 2 PG251 PG253 ALL NIPPON AIRWAYS CO. LTD. (ANA) 2 PG584-PG586 3 PK711-PK716 ALOHA (ALO) 2 PG046 3 PK286-PK287 PK691-PK695 PK697 PY231 PY242 PY451 AMC AVIATION (AMF) 3 PK264 Jun 30/94 737-53A1 166 2 BOEING SERVICE BULLETIN 737-53A1 166 AMERICA WEST AIRLINES, INC. (AMW) 2 PC004 PG036 PL801 3 PK283 PK696 PLO81 PL172 PL551-PL562 AMIRI FLIGHT (ABD) 3 PK495 ANGOLA AIRLINES (ANG) 3 PK661 PK664 PY162 ANSETT WORLDWIDE AVIATION SERVICES (AWW) 1 PA001 PA003-PA004 2 PCO03 ARAMCO ASSOCIATED CO. (ARM) 3 PL151 PY241 PY243-PY244 ARKIA ISRAELI AIRLINES, LTD (ARK) 2 PG575 ASEAN AVIATION (L) INC. (ASJ) 2 PG578-PG583 ATASCO USA, INC. (ATJ) 3 PL762 AVENSA (AVN) 3 PK042-PK043 AVIATECA (AVT) 2 PL737 PL740-PL741 3 PY201 AVIOGENEX AIR TRANSPORT (AVG) 3 PL501 PL506 BEST LEISURE (BES) 3 PJ108 PJ113 BHOJA AIR (BHO) 3 PK614 BOURAQ INDONESIA AIRLINES (PTB) 2 PJQ01 PL742 PL803 3 PK501 PL743-PL744 BRAATHENS S.A.F.E. (BRT) 3 PK882 BRITISH AIRWAYS (BAB) 3 PK731-PK749 PK771-PK772 PK774-PKm PK779 PNO01 CALDWELL AIRCRAFT TRADING CO. (CAS) 2 PG402 CAMEROON AIRLINES (CAM) 2 PY046-PY047 Jun 30/94 737-53AI1 66 3 BOEING SERVICE BULLETIN 737-53A1166 CANADIAN AIRLINES INTERNATIONAL LTD. (CDI) 2 PY303-PY304 3 PK358 PK671-PK675 PK677-PK680 PK822 PK881 PK884 PL401-PL417 PL764-PL770 PM141-PM142 PY151-PY154 PY421-PY422 PY441 CARNIVAL AIR (CVL) 2 PG305 PG312 PL712 3 PJ007-PJ008 CASINO EXPRESS (CIN) 2 PG279 PG436 3 PK461 CAYMAN AIRWAYS (CAY) 3 PK222 PK561 CHINA SOUTHERN AIRLINES (GUN) 3 PK636-PK637 CIS AIR HOLDINGS, LTD. (CIS) 2 PG302 COMAIR (CML) 2 PG354 PG356 CONQUEST SUN AIRLINES, INC. (CQT) 2 PG438 CONTINENTAL AIRLINES, INC. (CAL) 1 PA006-PA009 PA01 1 PG199 2 PA01 2 PA01 4 PA01 6-PA020 PG056 PG064 PG225 P0433 PG501-PG505 PG621-PG625 PG627-PG628 PG630 PG704 3 PLO00l COPA COMPANIA PANAMENA DE AVIATION S.A. (COP) 2 PY341 3 PJ107 PJ112 PK465 PK617 PL745 CROATIA AIRLINES (CRH) 3 PK904 PK906-PK907 PK928 PK932 DAMANIA AIRWAYS LTD. (DAI) 3 PL451-PL452 PNO81-PNO82 DELTA AIR LINES, INC. (DAL) 3 PK611 PK613 PK623-PK624 PK632 PL221 PL611 4 PN131-PN13S E G AND G (EGN) 2 PG037 PG208 PG210 PG215 PG431 3 PL763 EAS EUROPE AIRLINES (EUR) 3 PK203 PK215 PK282 PK359 PK564 PK612 EAST WEST AIRLINES (INDIA) (BOM) 3 PK615-PK616 PK819 PK824 PL171 Jun 30/94 737-53A1 166 4 BOEING SERVICE BULLETIN 737-53A1166 EDRESS, SHIEKH M. (SME) 3 PL505 EGYPTAIR (EGP) 3 PK255 PK257-PK258 EL AL ISRAEL AIRLINES, LTD. (ELA) 3 PL631-PL632 EURALAIR (ERA) 2 PG026 PGO28-PG029 PY004 PY006 FAR EASTERN AIR TRANSPORT (FAT) I PA002 PA005 2 PG055 PG226 PG228 PG230 3 PK562 FAUCETT (COMPANIA DE AVIATION S.A. (FCT) 2 PC002 PG034 PG213 PL711 3 PK241 PL758 FLIGHTSTAR AVIATION CORPORATION (FST) 2 P0274 FORTUNE AVIATION (FOR) 3 PK432 FRENCH POSTAL OFFICE (FPO) 2 PY302 PY344 3 PY101-PYl03 FRONTIER AIRLINES (FRO) 2 PG306 PG308 GATARI AIR SERVICE (GRI) 3 PL441 GB AIRWAYS (GBA) 3 PJ11O-PJiii GOVERNMENT OF BRAZIL (BRZ) 3 PK068-PK069 GOVERNMENT OF MEXICO (MXG) 2 PC005 PG223 GOVERNMENT OF SHARJAH (SHJ) 3 PL581 GPA GROUP LTD. (GUI) 3 PK252 PK354-PK355 GULF AIR (GUL) 3 PK464 PK467-PK468 HAPAG LLOYD (HAP) 3 PL504 Jun 30/94 737-53A1 166 5 BOEING SERVICE BULLETIN 737-53A1166 HEAVYLIFT AIRCRAFT ENGINEERING (HVL) 3 PJ109 INDIAN AIR FORCE (IDF) 2 PH712-PH713 4 PM016-PM017 INDIAN AIRLINES (IND) 2 PH70S PH711 3 PHO21 PH024 PK231-PK233 PK235-PK240 PM001-PM006 PY631 INDONESIAN AIR FORCE (IDO) 3 PL601-PL602 4 PL603 INTEGRATED RESOURCES (INH) 1 PG271 2 PG273 PG403 INTERAMERICA S.A.