TextPartly OCR
Some pages are OCR from a scan. OCR can misread letters and numbers.
Query with SQL
duckdb -csv -c "SELECT p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = 'f7c83496206d09a47a8c62c479b566481e01d83d4fcdcdf509e33ee260bba3dd' ORDER BY p.page"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT p.page, p.text_source, p.text, f.rights_holder, f.license FROM 'https://openairdocs.org/data/latest/service_document_file_page.parquet' p JOIN 'https://openairdocs.org/data/latest/service_document_file.parquet' f USING (file_sha256) WHERE p.file_sha256 = 'f7c83496206d09a47a8c62c479b566481e01d83d4fcdcdf509e33ee260bba3dd' ORDER BY p.page
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Commercial Airplanes 737 Service Bulletin ALERT Number: 737-52A1167 Original Issue: December 01, 2011 ATA System: 5280 SUBJECT: DOORS - Landing Gear Doors - Inboard Main Landing Gear Door Hinge Fittings - Inspection and Replacement Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 730-774). An export license may be required before it is used for development, production or use by foreign persons from specific countries. The controller of this data has the individual responsibility to abide by all export laws.
9E991ECCN:
BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2011 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter. Boeing also claims copyright in this document as a compilation and/or collective work.
This document includes proprietary information owned by The Boeing Company and/or one or more third parties.
Treatment of the document and the information it contains is governed by contract with Boeing. For more information, contact The Boeing Company, P.O. Box 3707, Seattle, Washington 98124.
Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner, BBJ, DC-8, DC-9, DC-10, KC-10, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, Poseidon and the Boeing livery are all trademarks owned by The Boeing Company; and no trademark license is granted in connection with this document unless provided in writing by Boeing.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 01, 2011 737-52A1167 1 of 59
4.0
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 01, 2011 737-52A1167 2 of 59 BOEING SERVICE BULLETIN 737-52A1167
ALERTALERT
BLANK PAGE
Table of Contents
Summary5
1. PLANNING INFORMATION9
A. Effectivity9
1. Airplanes9
2. Spares Affected ........................................ 2 2 B. Concurrent Requirements ...................................... 2 2 C. Reason ................................................ 2 2 D. Description .............................................. 2 2 E. Compliance .............................................. 2 3 F. Approval ............................................... 2 4 G. Manpower .............................................. 2 5 H. Weight and Balance Changes .................................... 2 5 I. Electrical Load Data ......................................... 2 5 J. References .............................................. 2 5
1. Existing Data .......................................... 2 5
2. Data supplied with this Service Bulletin ............................ 2 6
3. Installation Drawings Used in the Preparation of this Service Bulletin ............ 2 6 K. Publications Affected ........................................ 2 6 L. Interchangeability and Intermixability of Parts ........................... 2 6
2. MATERIAL INFORMATION ........................................ 2 7 A. Material - Price and Availability ................................... 2 7 B. Industry Support Information .................................... 2 7 C. Parts Necessary For Each Airplane ................................. 2 7
1. Kits/Parts ............................................ 2 7
2. Parts and Materials Supplied by the Operator ........................ 2 9
3. Parts Modified and Reidentified ................................ 2 9
4. Parts Removed and Not Replaced .............................. 2 9 D. Parts Necessary to Change Spares ................................. 3 0 E. Special Tooling - Price and Availability ............................... 3 0 F. Special Tooling Necessary to do this Service Bulletin ....................... 3 0
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 3 1 A. GENERAL INFORMATION ..................................... 3 1 B. WORK INSTRUCTIONS ....................................... 3 2 FIGURE 1: INBOARD MLG DOOR HINGE FITTING ASSEMBLY - INSPECTION - LEFT SIDE .... 3 4 FIGURE 2: INBOARD MLG DOOR HINGE FITTING ASSEMBLY - INSPECTION - RIGHT SIDE . . . 37 FIGURE 3: INBOARD MLG DOOR HINGE FITTING ASSEMBLY - MODIFICATION - LEFT SIDE . . 40 FIGURE 4: INBOARD MLG DOOR HINGE FITTING ASSEMBLY - MODIFICATION - RIGHT SIDE . 50
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 01, 2011 737-52A1167 3 of 59 BOEING SERVICE BULLETIN 737-52A1167
ALERTALERT
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 01, 2011 737-52A1167 4 of 59 BOEING SERVICE BULLETIN 737-52A1167
ALERTALERT
BLANK PAGE
Commercial Airplanes 737 Service Bulletin ALERT SummaryNumber: 737-52A1167Original Issue: December 01, 2011 ATA System: 5280 SUBJECT: DOORS - Landing Gear Doors - Inboard Main Landing Gear Door Hinge Fittings - Inspection and Replacement
THIS BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH
1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.
CONCURRENT REQUIREMENTS None.
BACKGROUND This service bulletin gives instructions to inspect the inboard main landing gear (MLG) door hinge fittings for any cracks. Undetected cracks in the inboard MLG door hinge fittings can lead to hinge fitting failures, which can cause departure of the inboard MLG door assemblies to occur. The inboard MLG door assembly departure may impact and damage control surfaces, which could lead to reduced controllability of the airplane.
One operator reported an inboard MLG door assembly departure on a 737-700 airplane with 24,114 flight cycles.
This was the first reported instance of inboard MLG door assembly departure that Boeing has received on this particular model.
Boeing has conducted an analysis on the inboard MLG door assembly and found that the cracks in the inboard MLG door hinge fittings are caused by fatigue due to vibration when the landing gears are deployed. The analysis confirmed that the premature fatigue failure of the inboard MLG door hinge fittings resulted in the departure of the inboard MLG door assembly.
A new and improved inboard MLG door hinge fitting has been designed to have a better durability. Production incorporation of the new and improved inboard MLG door hinge fitting affects airplanes line number 3829 and on.
This service bulletin gives instructions to inspect the existing inboard MLG door hinge fittings for any cracks.
Boeing Service Related Problem (SRP) 737NG-SRP-52-0097 is related to this service bulletin.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 01, 2011 737-52A1167 5 of 59
ACTION (PRR 38275-176S) Install safety equipment for the access of the MLG door. Do a detailed inspection or surface high frequency eddy current (HFEC) inspection of the inboard MLG door hinge fittings. If no crack is found, repeat the inspection or do the modification of the inboard MLG door hinge fitting assemblies as a preventative modification. If any crack is found, do the modification of the inboard MLG door hinge fitting assemblies. The modification installs new and improved inboard MLG door hinge fitting assemblies and terminates the repeat inspection requirements of this service bulletin. Put the airplane back to a serviceable condition.
EFFECTIVITY 737-600/-700/-700C/-800/-900/-900ER airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes.
COMPLIANCE The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin mandatory.
Refer to Paragraph 1.E., Compliance.
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are available for 737 airplanes in warranty as of July 6, 2010. Please refer to Paragraph
2.B., Industry Support Information.
MANPOWER Elapsed HoursTotal Task HoursAirplanes
6.5012.00All airplanes(a)
(a) More time is needed if the MLG door adjustment is needed.
MATERIAL INFORMATION Boeing Supplied Kits/Parts.
Operator Supplied Parts/Materials.
Refer to Paragraph 2.A., Material - Price and Availability.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 01, 2011 737-52A1167 6 of 59 BOEING SERVICE BULLETIN 737-52A1167
ALERTALERT
BOEING SERVICE BULLETIN 737-52A1167
ALERT ALERT
LEFT MLG DOOR ASSEMBLY
SHOWN (RIGHT SIDE OPPOSITE
OUTBOARD MLG DOOR
CENTER MLG DOOR
INSTALL SAFETY EQUIPMENT FOR THE
ACCESS OF THE MAIN LANDING GEAR (MLG) DOOR. DO A DETAILED OR SURFACE HIGH
FREQUENCY EDDY CURRENT (HFEC)
INSPECTION OF THE INBOARD MLG DOOR HINGE FI INGS. - NO CRACK IS FOUND,
REPEAT ION OR DO THE
MODIFICATION OF THE INBOARD MLG DOOR
HINGE FITTING ASSEMBLIES AS A PREVENTATIVE MODIFICATION. IF ANY CRACK
IS FOUND, DO THE MODIFICATION OF THE INBOARD MLG
INBOARD MLG DOOR HINGE FITTING DOOR ASSEMBLIES. THE MODIFICATION TERMINATES THE REPEAT INSPECTION REQUIREMENTS. PUT
THE AIRPLANE BACK TO A SERVICEABLE CONDITION.
ONLY MLG DOOR ASSEMBLY SHOWN FOR CLARITY (TYPICAL LEFT SIDE SHOWN, RIGHT SIDE OPPOSITE) 2081163 Original Issue: December 01, 2011 737-52A1167
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 7 of 59
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 01, 2011 737-52A1167 8 of 59 BOEING SERVICE BULLETIN 737-52A1167
ALERTALERT
BLANK PAGE
Commercial Airplanes 737 Service Bulletin ALERT Number: 737-52A1167 Original Issue: December 01, 2011 ATA System: 5280 SUBJECT: DOORS - Landing Gear Doors - Inboard Main Landing Gear Door Hinge Fittings - Inspection and Replacement
THIS BULLETIN IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH
1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.
1. PLANNING INFORMATION A. Effectivity
1. Airplanes
DESCRIPTIONCONFIGURATIONGROUP 737-600/-700/-700C/-800/-900/-900ER airplanes line number 1 through 3828.
-1 Airplane Models:
737-600, 737-700, 737-700C, 737-800, 737-900, 737-900ER GroupVariable Number 1YA001 - YA099 1YA101 - YA199 1YA201 - YA211 1YA221 1YA231 - YA242 1YA251 - YA256 1YA271 - YA272 1YA291 1YA301 - YA302
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 01, 2011 737-52A1167 9 of 59
GroupVariable Number 1YA311 - YA314 1YA321 - YA323 1YA336 - YA345 1YA351 1YA356 - YA357 1YA366 - YA367 1YA371 - YA377 1YA501 - YA536 1YA541 - YA552 1YA571 - YA578 1YA601 - YA615 1YA621 - YA622 1YA626 - YA631 1YA635 - YA636 1YA641 - YA642 1YA645 - YA650 1YA656 - YA659 1YA666 - YA667 1YA671 - YA672 1YA681 - YA691 1YA701 - YA710 1YA721 - YA722 1YA731 - YA734 1YA751 - YA756 1YA801 - YA803 1YA809 1YA811 - YA814 1YA831 - YA835 1YA841 - YA862 1YA881 - YA882 1YA891 - YA892 1YA961 - YA978 1YB001 - YB006
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 01, 2011 737-52A1167 10 of 59 BOEING SERVICE BULLETIN 737-52A1167
ALERTALERT
GroupVariable Number 1YB101 - YB132 1YB151 - YB153 1YB156 - YB158 1YB161 - YB164 1YB171 - YB172 1YB181 - YB184 1YB201 - YB208 1YB271 1YB276 1YB301 - YB310 1YB371 - YB392 1YB501 - YB502 1YB521 - YB526 1YB541 - YB544 1YB551 1YB561 - YB598 1YB601 - YB635 1YB651 1YB656 1YB671 - YB672 1YB851 - YB863 1YB871 - YB874 1YB881 - YB893 1YB901 - YB903 1YB911 1YB961 - YB975 1YB981 1YB986 - YB998 1YC001 - YC030 1YC051 - YC084 1YC091 - YC095 1YC101 - YC104 1YC111 - YC113
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 01, 2011 737-52A1167 11 of 59 BOEING SERVICE BULLETIN 737-52A1167
ALERTALERT
GroupVariable Number 1YC121 1YC126 - YC127 1YC136 - YC141 1YC146 - YC147 1YC151 - YC156 1YC166 - YC171 1YC176 - YC179 1YC186 - YC190 1YC201 - YC203 1YC206 - YC207 1YC301 - YC305 1YC321 - YC387 1YC391 - YC394 1YC396 1YC401 - YC417 1YC421 - YC422 1YC426 - YC428 1YC436 - YC439 1YC441 - YC448 1YC451 - YC455 1YC459 1YC461 - YC467 1YC471 - YC499 1YC501 - YC526 1YC571 - YC583 1YC587 - YC589 1YC591 - YC593 1YC601 - YC655 1YC681 - YC696 1YC701 - YC715 1YC720 - YC725 1YC727 - YC752 1YC761 - YC770
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 01, 2011 737-52A1167 12 of 59 BOEING SERVICE BULLETIN 737-52A1167