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Commercial Airplanes 737 Service Bulletin ALERT Number: 737-53A1366 Original Issue: May 17, 2016 ATA System: 5311 SUBJECT: FUSELAGE - Frames and Bulkheads - Emergency Exit Frame Inboard Chord - Inspections Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 300-774). 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 © 2016 Boeing.
Unpublished Work. All Rights Reserved.
Treatment of this document and its content is governed by contract with Boeing. Rights to use this document are licensed on a per aircraft basis and such rights may not be transferable. For more information, contact The Boeing Company.
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, KC-46, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8, Poseidon and Boeing liveries 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.
Original Issue: May 17, 2016 737-53A1366 1 of 40
3.0
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 17, 2016 737-53A1366 2 of 40 BOEING SERVICE BULLETIN 737-53A1366
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Table of Contents
Summary5
1. PLANNING INFORMATION9
A. Effectivity9
1. Airplanes9
2. Spares Affected15
B. Concurrent Requirements15
C. Reason15
D. Description16
E. Compliance16
F. Approval17
G. Manpower18
H. Weight and Balance Changes18
I. Electrical Load Data18
J. References19
1. Existing Data:19
2. Data Supplied with this Service Bulletin:19
3. Installation Drawings Used in the Preparation of this Service Bulletin:19
K. Publications Affected19
L. Interchangeability and Intermixability of Parts19
M. Software Accomplishment Summary19
2. MATERIAL INFORMATION21
A. Material - Price and Availability21
B. Industry Support Information21
C. Parts Necessary for Each Airplane21
1. Kits/Parts21
2. Parts and Materials Supplied by the Operator21
3. Parts Modified and Reidentified21
4. Parts Removed and Not Replaced21
D. Parts Necessary to Change Spares21
E. Special Tooling - Price and Availability21
F. Special Tooling Necessary to do this Service Bulletin21
3. ACCOMPLISHMENT INSTRUCTIONS23
A. GENERAL INFORMATION23
B. WORK INSTRUCTIONS24
FIGURE 1: DETAILED INSPECTION AND HFEC INSPECTION OF LEFT SIDE BS 616 FRAME INBOARD
CHORD [Group 1]27
FIGURE 2: DETAILED INSPECTION AND HFEC INSPECTION OF RIGHT SIDE BS 616 FRAME INBOARD
CHORD [Group 1]30
FIGURE 3: DETAILED INSPECTION AND HFEC INSPECTION OF LEFT SIDE BS 578 FRAME INBOARD
CHORD [Group 2]33
FIGURE 4: DETAILED INSPECTION AND HFEC INSPECTION OF RIGHT SIDE BS 578 FRAME INBOARD
CHORD [Group 2]36
APPENDIX A: LOGIC DIAGRAM FOR PARAGRAPH 1.E. COMPLIANCE: TABLE 1: DETAILED INSPECTION
AND HFEC INSPECTION FOR ANY CRACK AT THE FRAME INBOARD CHORD, FORWARD
OF THE EMERGENCY EXIT OPENING, LEFT AND RIGHT SIDE39
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 17, 2016 737-53A1366 3 of 40 BOEING SERVICE BULLETIN 737-53A1366
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Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 17, 2016 737-53A1366 4 of 40 BOEING SERVICE BULLETIN 737-53A1366
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Commercial Airplanes 737 Service Bulletin ALERT SummaryNumber: 737-53A1366Original Issue: May 17, 2016 ATA System: 5311 SUBJECT: FUSELAGE - Frames and Bulkheads - Emergency Exit Frame Inboard Chord - Inspections
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 frame inner chord below stringer S-11 for any crack. The frame for 737-300/-500 is at BS 616 forward of the emergency exit, and for 737-400 it is at BS 578 forward of the forward emergency exit on both sides of the airplane. An operator of a 737-300 reported a crack of approximately 1.00 inch in the BS 616 frame inboard chord during Supplemental Structural Inspection Document (SSID) inspections. The crack was located at the lowest fastener hole of the inboard chord inboard strap below stringer S-11R. The airplane had 75,584 total flight hours and 63,570 total flight cycles. Cracking in the inboard chord is the result of fatigue caused by cyclic pressurization of the fuselage. If not found and repaired, a crack in the inboard chord of the noted frames below S-11L or S-11R could result in structural failure of the frame and possible rapid decompression.
Boeing Fleet Team Digest (FTD) 737 FTD 53-15008 is related to this service bulletin.
This table is provided to operators for planning purposes only. Refer to the applicable sections for more information.
ReferenceAffectedPlanning Data Paragraph 1.A.2., Spares AffectedNoSpares Affected Paragraph 1.E., Compliance and Paragraph
1.F., Approval YesAD Related Paragraph 1.H., Weight and Balance ChangesNoWeight and Balance Change Paragraph 1.I., Electrical Load DataNoElectrical Load Changed Paragraph 1.K., Publications AffectedNoPublications Affected Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 17, 2016 737-53A1366 5 of 40
ReferenceAffectedPlanning Data Paragraph 1.K., Publications AffectedNoAirplane Flight Operations Affected (Flight Crew Operations Manual and/or FAA Approved Airplane Flight Manual) Paragraph 2.C.1., Kits/PartsNoKits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator NoOperator Supplied Parts/Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION Group 1:
Do PART 1: DETAILED INSPECTION AND HFEC INSPECTION for any crack in the BS 616 frame inboard chord below S-11L and S-11R at the lowest fastener of the inboard strap. If no crack is found, repeat PART 1:
DETAILED INSPECTION AND HFEC INSPECTION at the repeat interval in Paragraph 1.E., Compliance. If any crack is found, contact The Boeing Company for repair instructions and do the repair.
Group 2:
Do PART 1: DETAILED INSPECTION AND HFEC INSPECTION for any crack in the BS 578 frame inboard chord below S-11L and S-11R at the lowest fastener of the inboard strap. If no crack is found, repeat PART 1:
DETAILED INSPECTION AND HFEC INSPECTION at the repeat interval in Paragraph 1.E., Compliance. If any crack is found, contact The Boeing Company for repair instructions and do the repair.
EFFECTIVITY All 737-300/400/500 Airplane(s). Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplane(s).
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 not available for the inspection procedures given in this service bulletin.
MANPOWER Elapsed HoursTotal Task HoursTask
4.307.30Inboard Chord Inspections Refer to Paragraph 1.G., Manpower.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 17, 2016 737-53A1366 6 of 40 BOEING SERVICE BULLETIN 737-53A1366
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MATERIAL INFORMATION None.
STA 616 STA 578
STA STA 616 • 578
• D GROUP 1 GROUP 2 737-300 AND 737-500 737-400 GROUP 1 STA 616 GROUP 2 STA 578 - S-9L
- S-10L _ S-11L DO PART 1: DETAILED INSPECTION
AND HFEC INSPECTION FOR ANY
CRACK IN THE FRAME INBOARD CHORD BELOW S-11L AND S-11R AT
THE LOWEST FASTENER OF THE INBOARD STRAP.
S-13L
• S-14L
INBOARD STRAP
- S-15L 01010 STRINGER 11 TYPICAL CRACK • INBOARD FLANGE OF • FRAME WEB
FRAME INBOARD CHORD
LEFT SIDE SHOWN
RIGHT SIDE SIMILAR (TYPICAL) INBD
INSPECTION AREA GROUP 1:
STA 616: 737-300/-500 GROUP 2:
STA 578: 737-400
FRAME INBOARD CHORD
VIEW LOOKING AFT (TYPICAL) B 2478988 Original Issue: May 17, 2016 Export Controlled ECCN: 9E991 - BOEING 737-53A1366 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 7 of 40
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
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Commercial Airplanes 737 Service Bulletin ALERT Number: 737-53A1366 Original Issue: May 17, 2016 ATA System: 5311 SUBJECT: FUSELAGE - Frames and Bulkheads - Emergency Exit Frame Inboard Chord - Inspections
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 This service bulletin is applicable to all 737-300, -400 and -500 airplanes, line numbers 1001-3132 in 2 Groups. The Variable Numbers and Group Information for the applicable airplanes are given below.
Refer to Service Bulletin Index D6-19567 Part 3 for Airplane Variable Number, Line Number, and Serial Number data.
DESCRIPTIONCONFIGURATIONGROUP All 737-300/-500 Airplanes-1 All 737-400 Airplanes-2 Airplane Models:
737-300, 737-400, 737-500 GroupVariable Number 2PJ301 - PJ302 2PJ551 - PJ561 2PJ601 - PJ615 2PJ811 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 17, 2016 737-53A1366 9 of 40
GroupVariable Number 2PJ816 - PJ817 1PM381 - PM399 1PM401 - PM417 1PM541 - PM550 2PM551 - PM564 1PP001 - PP054 1PP101 - PP169 1PP181 - PP199 1PP201 - PP205 1PP221 1PP231 - PP243 1PP281 - PP286 1PP301 - PP305 1PP351 - PP353 1PP376 - PP384 1PP391 - PP393 1PP401 - PP440 1PP471 - PP475 1PP501 - PP522 1PP631 - PP634 1PP651 - PP652 1PP671 - PP699 1PP701 - PP733 1PP771 - PP779 1PP801 - PP808 1PP821 - PP827 1PP831 - PP848 1PP851 - PP852 1PP861 - PP877 1PP891 - PP899 1PP901 - PP936 1PP946 - PP948 1PP951 - PP952 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 17, 2016 737-53A1366 10 of 40 BOEING SERVICE BULLETIN 737-53A1366
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GroupVariable Number 1PP961 - PP967 1PP981 - PP991 1PP993 1PQ001 - PQ016 1PQ026 - PQ041 1PQ051 - PQ092 1PQ101 - PQ199 1PQ201 - PQ202 1PQ221 - PQ237 1PQ241 - PQ243 1PQ251 - PQ267 1PQ281 - PQ299 1PQ301 - PQ307 1PQ331 - PQ332 1PQ341 - PQ348 1PQ361 - PQ373 1PQ391 - PQ395 1PQ401 - PQ418 1PQ421 1PQ431 - PQ438 1PQ447 - PQ448 1PQ451 1PQ454 1PQ471 - PQ475 1PQ479 - PQ481 1PQ486 - PQ487 1PQ491 - PQ493 1PQ771 - PQ772 1PQ791 - PQ793 1PQ801 - PQ805 1PQ931 - PQ935 1PQ951 1PQ971 - PQ997 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 17, 2016 737-53A1366 11 of 40 BOEING SERVICE BULLETIN 737-53A1366
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GroupVariable Number 1PR001 - PR017 1PR021 - PR034 1PR041 - PR045 1PR061 - PR072 1PR077 - PR082 1PR091 - PR092 1PR096 1PR101 1PR121 - PR122 1PR131 - PR132 1PR141 - PR143 1PR161 - PR172 1PR181 1PS601 - PS631 1PS636 - PS638 1PS641 - PS644 1PS651 - PS657 1PS666 - PS669 1PS691 - PS692 1PS701 - PS706 1PS751 - PS799 1PS811 1PS836 - PS837 1PS841 - PS846 1PS851 - PS852 1PS856 1PS861 - PS863 1PS866 - PS868 1PS871 - PS874 1PS896 - PS897 1PS901 - PS941 1PS956 - PS957 1PS961 - PS963 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: May 17, 2016 737-53A1366 12 of 40 BOEING SERVICE BULLETIN 737-53A1366