# Boeing Alert Service Bulletin 767-53A0100: U.S. DOT/FAA - Service Bulletin

- Rights: © The Boeing Company. Filed by the FAA in regulations.gov docket FAA-2011-0044; AD 2012-09-04 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Boeing Alert Service Bulletin 767-53A0100](https://openairdocs.org/service-documents/boeing/767-53a0100.md)
- Title as filed: U.S. DOT/FAA - Service Bulletin
- Pages: 309
- PDF: https://openairdocs.org/files/sha256/31/9b/319b03ce3c01735b908c884d42500877e5823ccf7f1515772590424ed361cdd2
- Page: https://openairdocs.org/service-documents/boeing/767-53a0100/file/319b03ce3c01

## Text

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### Page 1

Commercial 
Airplanes
767
Service Bulletin
Number: 767-53A0100
Original Issue: September 26, 2002
Revision 3: February 06, 2012
ATA System: 5350
SUBJECT: FUSELAGE - Section 45 - STA 955 Rear Spar Bulkhead Side Fittings - Fail-safe Strap
- Inspection
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 © 2002 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Unpublished Work - All Rights Reserved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.
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Table of Contents
Revision Transmittal Sheet ............................................ 5
Summary ...................................................... 7
1. PLANNING INFORMATION ........................................ 1 1
A. Effectivity ............................................... 1 1
1. Airplanes ............................................ 1 1
2. Spares Affected ........................................ 1 8
B. Concurrent Requirements ...................................... 1 8
C. Reason ................................................ 1 8
D. Description .............................................. 2 0
E. Compliance .............................................. 2 1
F. Approval ............................................... 2 3
G. Manpower .............................................. 2 4
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 7
L. Interchangeability and Intermixability of Parts ........................... 2 7
2. MATERIAL INFORMATION ........................................ 2 9
A. Material - Price and Availability ................................... 2 9
B. Industry Support Information .................................... 3 2
C. Parts Necessary For Each Airplane ................................. 3 2
1. Kits/Parts: ........................................... 3 2
2. Parts and Materials Supplied by the Operator: ........................ 5 1
3. Parts Modified and Reidentified: ............................... 5 2
4. Parts Removed and Not Replaced: .............................. 5 2
D. Parts Necessary to Change Spares ................................. 5 2
E. Special Tooling - Price and Availability ............................... 5 2
F. Special Tooling Necessary to do this Service Bulletin ....................... 5 2
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 5 3
A. GENERAL INFORMATION ..................................... 5 3
B. WORK INSTRUCTIONS ....................................... 5 4
FIGURE 1: LOGIC DIAGRAM (DELETED) ................................ 6 1
FIGURE 2: STA 955 FAIL-SAFE STRAP INSPECTION ......................... 6 2
FIGURE 3: FASTENER/PART REMOVE/REPLACE - GROUP 1 AIRPLANES - LEFT SIDE [Group 1] . 64
FIGURE 4: FASTENER/PART REMOVE/REPLACE - GROUP 1 AIRPLANES - RIGHT SIDE [Group 1] . 73
FIGURE 5: FASTENER/PART REMOVE/REPLACE - GROUP 2, 3, 10 AIRPLANES - LEFT SIDE [Group
2-3, 10] ............................................. 8 2
FIGURE 6: FASTENER/PART REMOVE/REPLACE- GROUP 2, 3, 10 AIRPLANES - RIGHT SIDE [Group
2-3, 10] ............................................. 9 2
FIGURE 7: FASTENER/PART REMOVE/REPLACE- GROUP 4, 7 AIRPLANES - LEFT SIDE [Group 4, 7]
................................................. 1 0 2
FIGURE 8: FASTENER/PART REMOVE/REPLACE- GROUP 4, 7 AIRPLANES - RIGHT SIDE [Group 4,
7 ]  ................................................ 1 1 2
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FIGURE 9: FASTENER/PART REMOVE/REPLACE- GROUP 5 AIRPLANES - LEFT SIDE [Group 5] . 122
FIGURE 10: FASTENER/PART REMOVE/REPLACE - GROUP 5 AIRPLANES - RIGHT SIDE [Group 5] . 133
FIGURE 11: FASTENER/PART REMOVE/REPLACE- GROUP 6, 11 AIRPLANES - LEFT SIDE [Group 6,
11] ............................................... 1 4 4
FIGURE 12: FASTENER/PART REMOVE/REPLACE - GROUP 6, 11 AIRPLANES - RIGHT SIDE [Group 6,
11] ............................................... 1 5 5
FIGURE 13: TUBING - REMOVE/REPLACE - LEFT SIDE - GROUP 1-7, 10, 11 AIRPLANES [Group 1-7,
10-11] ............................................. 1 6 6
FIGURE 14: TUBING - REMOVE/REPLACE - RIGHT SIDE - GROUP 1-7, 10, 11 AIRPLANES [Group 1-7,
10-11] ............................................. 1 6 9
FIGURE 15: FAIL-SAFE STRAP REPAIR/MODIFICATION ....................... 1 7 2
FIGURE 16: FASTENER/PART REMOVE/REPLACE- GROUP 8 - LEFT SIDE [Group 8] ....... 1 7 7
FIGURE 17: FASTENER/PART REMOVE/REPLACE- GROUP 8 - RIGHT SIDE [Group 8] ...... 1 8 7
FIGURE 18: FASTENER/PART REMOVE/REPLACE- GROUP 9 - LEFT SIDE [Group 9] ....... 1 9 7
FIGURE 19: FASTENER/PART REMOVE/REPLACE - GROUP 9 - RIGHT SIDE [Group 9] ...... 2 0 8
FIGURE 20: TUBING - REMOVE/REPLACE - GROUP 8, 9 - LEFT SIDE [Group 8-9] ......... 2 1 9
FIGURE 21: TUBING - REMOVE/REPLACE - GROUP 8, 9 - RIGHT SIDE [Group 8-9] ........ 2 2 3
FIGURE 22: JACK AND SUPPORT WORK - GROUP 1, 2, 5, 10 AIRPLANES [Group 1, Configuration 1;
Group 2, 5, 10] ........................................ 2 2 6
FIGURE 23: JACK AND SUPPORT WORK - GROUP 3, 4, 6 AIRPLANES [Group 3; Group 4, Configuration
1; Group 6] .......................................... 2 2 9
FIGURE 24: JACK AND SUPPORT WORK - GROUP 8,9 AIRPLANES [Group 8-9] .......... 2 3 2
FIGURE 25: ACCESS AT WING/BODY INTERFACE - LEFT SIDE - GROUP 1-7, 10, 11 AIRPLANES [Group
1-7, 10-11] ........................................... 2 3 5
FIGURE 26: ACCESS AT WING/BODY INTERFACE - RIGHT SIDE - GROUP 1-7, 10, 11 AIRPLANES
[Group 1-7, 10-11] ....................................... 2 3 9
FIGURE 27: ACCESS AT WING/BODY INTERFACE - LEFT SIDE - GROUP 8, 9 AIRPLANES [Group 8-9]
................................................. 2 4 3
FIGURE 28: ACCESS AT WING/BODY INTERFACE - RIGHT SIDE - GROUP 8, 9 AIRPLANES [Group 8-9]
................................................. 2 4 7
FIGURE 29: ACCESS AT WHEEL WELL/PRESSURE DECK - LEFT SIDE ............... 2 5 1
FIGURE 30: ACCESS AT WHEEL WELL/PRESSURE DECK - RIGHT SIDE .............. 2 5 7
FIGURE 31: AILERON CONTROL CABLE PULL/STOW - LEFT SIDE ................. 2 6 3
FIGURE 32: AILERON CONTROL CABLE PULL/STOW - RIGHT SIDE ................ 2 6 7
FIGURE 33: AILERON CONTROL CABLE RESTORE - LEFT SIDE ................... 2 7 2
FIGURE 34: AILERON CONTROL CABLE RESTORE - RIGHT SIDE .................. 2 7 6
FIGURE 35: PRESSURE DECK RESTORE - LEFT SIDE ........................ 2 8 1
FIGURE 36: PRESSURE DECK RESTORE - RIGHT SIDE ....................... 2 8 8
FIGURE 37: SKIN PANEL REPAIR - REMOVAL OF FRETTING AND/OR CORROSION ....... 2 9 5
FIGURE 38: SKIN PANEL REPAIR - MAKE/ASSEMBLE PARTS .................... 3 0 1
FIGURE 39: JACK AND SUPPORT WORK - GROUP 7, 11 AIRPLANES [Group 7, 11] ........ 3 0 7
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Commercial 
Airplanes
767
Service Bulletin
Revision Transmittal SheetNumber: 767-53A0100Original Issue: September 26, 2002
Revision 3: February 06, 2012
ATA System: 5350
SUBJECT: FUSELAGE - Section 45 - STA 955 Rear Spar Bulkhead Side Fittings - Fail-safe Strap
- Inspection
This revision includes all pages of the service bulletin.
COMPLIANCE INFORMATION RELATED TO THIS REVISION
No more work is necessary on the airplane(s) changed in accordance with Revision 2 of this service bulletin.
Federal Aviation Administration (FAA) Airworthiness Directive 2004-19-06 R1 is related to this service bulletin.
REASON FOR REVISION
This revision is sent to give less restrictive instruction for the access and restore work associated with the
repair/modification given in this service bulletin. This revision is also sent to make the work instruction more
clear.
These sections were changed:
1. Paragraph 1.C., Reason: Updated service history.
2. Paragraph 1.D., Description: Added maintenance zone data.
3. Paragraph 1.E., Compliance: Added statement regarding a possible new AD due to existing AD worksheet.
4. Paragraph 3.A., General Information: Added notes numbered 5, 9-13. Note 11 is added to give flexibility
regarding access work.
5. Paragraph 3.B., Work Instructions: Added note to steps 9-12, 23, 24, 26 to give flexibility regarding the
sequence of work.
6. Figure 15: Added a note to the step table to clarify the necessary work when the trim modification is
accomplished on a crack-free strap.
7. Figures 22-24, 39: Changed instruction to recommend (vs. require) that all jacks be locked by mechanical
means.
8. Figure 25-28: Changed the reference given for the installation and check of the bonding fastener. Also
added alternative fastener data in fastener table.
9. Figure 28: Added a fastener code (B) that was inadvertantly omitted from sheet 1 graphic.
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10. Figure 29, 30: Revised sheet 3 graphic to give a more accurate depiction.
11. Figure 32, 34: Revised cable identification labels on sheet 2, 3 graphics.
12. Figure 35,36: Revised sheet 3 graphic to give a more accurate depiction.
13. Figure 37: Changed skin thickness allowable for group 5 airplanes from 0.360 to 0.324 in.
Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity, to show the location
of important changes.
Pages with no vertical lines have no important changes.
REVISION HISTORY
September 26, 2002Original Issue:
August 11, 2006Revision 1:
January 15, 2010Revision 2:
February 06, 2012Revision 3:
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Commercial 
Airplanes
767
Service Bulletin
SummaryNumber: 767-53A0100Original Issue: September 26, 2002
Revision 3: February 06, 2012
ATA System: 5350
SUBJECT: FUSELAGE - Section 45 - STA 955 Rear Spar Bulkhead Side Fittings - Fail-safe Strap
- Inspection
CONCURRENT REQUIREMENTS
None.
BACKGROUND
The inspections specified in this service bulletin are necessary to make sure that cracks and/or corrosion in a
fail-safe strap will be found and repaired before the damage can have an effect on flight safety. The fail-safe
strap is held/attached between the rear spar bulkhead side fitting and the body skin at body station 955 on both
sides of the airplane. If the airplane is operated with a crack and/or corrosion in the fail-safe strap, a difficult
repair that requires removal of the fail-safe strap could become necessary. Also, the damage in the strap could
cause cracks in the body skin and other adjacent structure which then could be unable to sustain regulatory
loads, possibly resulting in a loss of structural integrity.
It is anticipated that cracks and/or corrosion in the fail-safe strap will be found with the inspections given in this
service bulletin before there is damage in the body skin and other adjacent structure, and before it is necessary
to replace the strap. The repair specified in this service bulletin requires only a fraction of the work and down
time required to replace the fail-safe strap.
Before the release of revision 1 of this service bulletin there were ten reports of cracks and/or corrosion in the
fail-safe strap on nine airplanes as shown in the table below. All but one of the damaged fail-safe straps were
replaced. One fail-safe strap was repaired with the trim-out repair given in this service bulletin.
CommentsDamageFlight HoursFlight Cycles
Straps had extreme corrosion.Corrosion left and right side,
cracks left and right side.
37,63413,472
Crack may have started from
damage in strap surface.
Crack left side.55,60916,403
Crack started at area of small
gouging and fretting on strap sur-
face.
Crack left side.72,70618,061
Strap had extreme corrosionCorrosion on left side71,64315,694
Fastener hole elongationCorrosion and cracks right side62,36018,545
Strap had extreme corrosionCorrosion on left side63,54923,337
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CommentsDamageFlight HoursFlight Cycles
Strap had extreme corrosionCorrosion on right side74,82323,987
Fretting, fastener hole elongationCrack right side66,46731,809
Strap repaired with trim-out repair
given in this service bulletin.
Crack right side51,12936,635
Crack growth in the fail-safe strap is not due to classical tensile fatigue. Boeing has found that the fatigue is due
to residual tension in the fail-safe strap. This tension is from locally high compressive stress yielding the part.
The fatigue occurs when the yielded section of the fail-safe strap repeatedly goes through cyclic loading. The
767 fatigue test aircraft was tested for 100,000 flight cycles and cracks were found in the fail-safe strap on both
the right and left sides of the test airplane.
At the release of revision 2 of this service bulletin, cracks have been found in 51 fail-safe straps on 41 airplanes.
Of these cases, 42 fail-safe straps were repaired in accordance with this service bulletin and nine fail-safe straps
were not repairable and were replaced. Fail-safe straps were repaired on 33 airplanes with flight-cycles ranging
from 9,250 to 38,490 and flight-hours ranging from 39,886 to 89,236. Fail-safe straps were replaced on nine
airplanes with flight-cycles ranging from 12,565 to 31,809 and flight-hours ranging from 48,704 to 93,212. Also,
four fail-safe straps have been replaced due to corrosion damage only (no cracks) on four airplanes with
flight-cycles ranging from 12,540 to 23,987 and flight-hours ranging from 37,634 to 74,823.
At the release of revision 2 of this service bulletin, there has also been one report of a crack found in the "T"
fitting which connects the fail-safe strap and the pressure deck. The cracked "T" fitting was found at 13,449
flight-cycles / 74,008 flight-hours and the crack was located at the lower of the three fastener holes common to
the fail-safe strap. As a result of this finding, instruction to do an open hole HFEC inspection of the "T" fitting
has been added to this service bulletin.
As of the release of revision 3 of this service bulletin, cracks have been found in 108 fail-safe straps on 79
airplanes. Of these cases, 94 fail-safe straps were repaired in accordance with this service bulletin and 14
fail-safe straps were not repairable and were replaced. Fail-safe straps have been repaired on airplanes with
flight-cycles ranging from 8,214 to 41,120, and fail-safe straps have been replaced on 14 airplanes with
flight-cycles ranging from 12,565 to 40,421. Also, seven fail-safe straps have been replaced due to corrosion
damage only (no cracks) on seven airplanes with flight-cycles ranging from 12,540 to 25, 867. Also, two fail-safe
straps have been repaired (in place) to remove corrosion from the tab area.
See Boeing Fleet Team Digest Article Number 767-FTD-53-02004 for pictures and more information of cracks
that have been found in-service on the fail-safe strap.
Boeing Service Related Problem (SRP) 767-SRP-53-0180 is related to this service bulletin.
Boeing Structural Item Interim Advisory (SIIA) 767-21 is related to this service bulletin.
The Federal Aviation Administration (FAA) has issued an Airworthiness Directive (AD) which requires incorporation
of this service bulletin for group 1-7, 10, 11 airplanes.
ACTION (PRR B12901-63S)
A detailed and HFEC inspection for corrosion and crack damage are to be done over the visible surface of the
fail-safe strap on each side of the airplane. Also, an ultrasonic inspection is to be done to find if there is a crack
in the area of the fail-safe strap under (covered by) the "T" fitting which is connected to the fail-safe strap and
to the outboard edge of the sloping pressure deck.
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If no corrosion or cracks are found with the inspections, repeat inspections are to be made at regular intervals.
If cracks and/or corrosion are found, a repair must be made before more flights. If crack damage has not extended
outside the tab part of the strap where the "T" fitting is attached, the fail-safe strap repair given in this service
bulletin is to be made. If crack damage extends outside the specified area, it will be necessary to replace the
strap. Boeing plans to release service bulletin 767-53-0116 at a later date with instructions to install a replacement
strap.
NOTE: The change made to the airplane with the fail-safe strap repair given in this service bulletin can be
made at any time to end the need for more inspections per this service bulletin at the side of the airplane
that has the repair.
EFFECTIVITY
767-200/-300/-300F/-400ER airplanes. Refer to paragraph 1.A.1 for effectivity.
COMPLIANCE
Federal Aviation Administration (FAA) Airworthiness Directive 2004-19-06 R1 is related to this service bulletin.
The Federal Aviation Administration (FAA) will possibly release a new Airworthiness Directive related to this
service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service
bulletin mandatory for all the airplanes affected by this service bulletin.
Refer to Paragraph 1.E., Compliance.
INDUSTRY SUPPORT INFORMATION
Boeing warranty remedies are not available for the inspection given in this service bulletin.
MANPOWER
Elapsed HoursTotal Task HoursAirplanes
2.04.0Group 1-10
Elapsed HoursTotal Task HoursAirplanes
85295Group 1-7, 10
86297Group 8, 9
MATERIAL INFORMATION
Boeing Supplied Kits/Parts.
Refer to Paragraph 2.A., Material - Price and Availability.
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BOEING SERVICE BULLETIN 767-53A0100
STA
955
FAILSAFE
STRAP
T-FITTING  REAR SPAR
BULKHEAD
FITTING
SEE
DO ULTRASONIC INSPECTION OF
THE AREA OF THE FAILSAFE
STRAP UNDER THE T-FITTING
INSPECTION
AREA
T- FITTING
, FWD
TYPICAL CRACK
IN FAILSAFE
LEFT SIDE SHOWN,  STRAP
RIGHT SIDE OPPOSITE
DO A DETAILED INSPECTION AND
A SURFACE HFEC INSPECTION OF  TYPICAL  V88417
ACCESSABLE AREAS OF FAILSAFE STRAP  CORROSION
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Revision 3: February 06, 2012  BOEING PROPRIETARY -  767-53A0100
Copyright © Unpublished Work - See page 1 for details.  10 of 309

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Commercial 
Airplanes
767
Service Bulletin
Number: 767-53A0100
Original Issue: September 26, 2002
Revision 3: February 06, 2012
ATA System: 5350
SUBJECT: FUSELAGE - Section 45 - STA 955 Rear Spar Bulkhead Side Fittings - Fail-safe Strap
- Inspection
1.    PLANNING INFORMATION
A. Effectivity
1. Airplanes
Refer to Service Bulletin Index Document D624T001 Part 3 for Airplane Variable Number, Line
Number, and Serial Number data.
This service bulletin is for the airplanes shown below. An equivalent change is on subsequent
production airplanes. Refer to PRR B12901-63S for data about this change.
DESCRIPTIONCONFIGURATIONGROUP
767-200 with longeron splice installation 145T0083-7/-8, -9/-10,
-11/-12
-1
Not modified to Boeing Approved Special Freighter configuration1
767-200 with longeron splice installation 145T0083-11/-12 and Special
Freighter modification which is given in Boeing service bulletin
767-53-0125 and is applicable to VA511 only
2
767-200 with longeron splice installation 145T0083-19/-20-2
767-300 with longeron splice installation 145T0083-13/-14-3
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DESCRIPTIONCONFIGURATIONGROUP
767-300 with longeron splice installation 145T0083-21/-22, -25/-26,
-33/-34
-4
Not modified to Boeing Converted Freighter (BCF) configuration1
Longeron splice installation 145T0083-21/-22 and BCF modification
which is given in Boeing service bulletin 767-53-0140 and is applicable
to VN191 only
2
Longeron splice installation 145T0083-21/-22 and BCF modification
which is given in Boeing service bulletin 767-53-0148 and is applicable
to VN192 only
3
Longeron splice installation 145T0083-21/-22 and BCF modification
which is given in Boeing service bulletin 767-53-0150 and is applicable
to VN 193 only
4
Longeron splice installation 145T0083-21/-22 and BCF modification
which is given in Boeing service bulletin 767-53-0154 and is applicable
to VN194 only
5
Longeron splice installation 145T0083-21/-22 and BCF modification
which is given in Boeing service bulletin 767-53-0157 and is applicable
to VN195 - VN197 only
6
767-200 with longeron splice installation 145T0083-41/-42-5
767-300 with longeron splice installation 145T0083-45/-46, -47/-48-6
767-300F with longeron splice installation 145T0083-25/-26, -27/-28,
-37/-38
-7
767-400ER with longeron splice installation 145T0083-31/-32-8
767-400ER with longeron splice installation 145T0083-43/-44-9
767-200 with longeron splice installation 145T0083-13/-14-10
767-300F with longeron splice installation 145T0083-49/-50-11
Airplane Models:
767-200, 767-300, 767-300F, 767-400ER
GroupVariable Number
1VA001 - VA020
1VA301 - VA315
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GroupVariable Number
1VA501 - VA530
1VA701 - VA719
1VA801 - VA810
1VB001 - VB002
1VB051 - VB055
1VB101 - VB125
1VB201 - VB202
1VB251 - VB253
1VB281 - VB284
1VB301 - VB302
1VB321 - VB332
1VB371 - VB373
1VB401
1VB441 - VB444
1VE001 - VE003
1VE021 - VE023
1VE041 - VE043
1VE061 - VE069
1VE083 - VE086
1VE101 - VE104
1VE116 - VE118
1VE121 - VE126
1VE141 - VE152
1VE171 - VE172
2VF001 - VF002
2VF041 - VF042
2VF051
2VF061 - VF062
2VF071 - VF072
2VF091 - VF093
10VF101 - VF102
2VF161 - VF162
2VF171 - VF172
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GroupVariable Number
2VF180 - VF184
2VF251
3VK001 - VK016
3VK021 - VK022
3VK031 - VK056
3VK081 - VK113
4VK131 - VK133
3VK141 - VK148
3VK161 - VK164
3VK171
3VK181
3VK186
3VL001 - VL006
3VL011
4VL701 - VL703
4VL751 - VL755
4VL806 - VL807
4VL871 - VL873
4VL891 - VL900
4VL911 - VL914
4VL931 - VL932
4VL941
4VN001 - VN041
4VN051 - VN064
4VN081 - VN099
4VN111 - VN127
4VN130 - VN137
4VN151 - VN158
4VN163 - VN168
4VN171 - VN174
4VN191 - VN198
4VN211 - VN212
4VN221 - VN225
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GroupVariable Number
4VN231 - VN234
4VN241 - VN243
4VN251 - VN276
4VN291 - VN293
4VN301 - VN314
4VN371 - VN372
4VN376
4VN381 - VN388
4VN421 - VN427
4VN436
4VN471 - VN472
4VN491 - VN513
4VN531 - VN532
4VN536 - VN537
4VN541 - VN542
4VN546 - VN547
4VN551
4VN556 - VN557
4VN561 - VN562
4VN631 - VN638
4VN651 - VN658
4VN671 - VN672
4VN676
4VN681 - VN691
4VN731 - VN732
4VN751 - VN753
4VN791 - VN792
4VN811 - VN813
4VN921 - VN922
4VN931 - VN936
4VN951 - VN953
4VN966 - VN972
8VQ001 - VQ019
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GroupVariable Number
9VQ020 - VQ021
8VQ071 - VQ082
9VQ083 - VQ086
2VR051 - VR060
2VR081
5VR084
5VR086 - VR087
7VR201 - VR211
7VR251
7VR256 - VR260
3VR401
3VR421 - VR423
3VR426
3VR441
3VR461
3VR471 - VR472
4VS051 - VS056
4VS061
4VS066 - VS070
4VS073 - VS078
4VS091 - VS104
4VS111 - VS113
4VS131 - VS133
4VS136 - VS137
4VS176 - VS177
4VS186 - VS187
4VS196 - VS203
4VS206 - VS208
4VS211
4VS216 - VS217
4VS231
4VS246 - VS248
4VS261 - VS263
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GroupVariable Number
4VS266 - VS274
4VS291 - VS293
4VS301 - VS303
4VS306 - VS311
4VS316
4VS321 - VS324
4VS331 - VS333
4VS336 - VS337
4VS366 - VS367
4VS381 - VS382
4VS391 - VS392
4VS401
6VS426 - VS428
4VS466 - VS472
4VS486
4VS496 - VS497
4VS506 - VS507
4VS526
4VS546 - VS549
6VS701 - VS712
6VS721 - VS732
6VS751 - VS759
6VS821 - VS825
6VS841 - VS844
6VS861
6VS881 - VS882
6VS891
6VS896
11VT501
7VW701 - VW721
7VW851
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2. Spares Affected
None.
B. Concurrent Requirements
None.
C. Reason
The inspections specified in this service bulletin are necessary to make sure that cracks and/or corrosion
in a fail-safe strap will be found and repaired before the damage can have an effect on flight safety.
The fail-safe strap is held/attached between the rear spar bulkhead side fitting and the body skin at
body station 955 on both sides of the airplane. If the airplane is operated with a crack and/or corrosion
in the fail-safe strap, a difficult repair that requires removal of the fail-safe strap could become necessary.
Also, the damage in the strap could cause cracks in the body skin and other adjacent structure which
then could be unable to sustain regulatory loads, possibly resulting in a loss of structural integrity.
It is anticipated that cracks and/or corrosion in the fail-safe strap will be found with the inspections
given in this service bulletin before there is damage in the body skin and other adjacent structure, and
before it is necessary to replace the strap. The repair specified in this service bulletin requires only a
fraction of the work and down time required to replace the fail-safe strap.
Before the release of revision 1 of this service bulletin there were ten reports of cracks and/or corrosion
in the fail-safe strap on nine airplanes as shown in the table below. All but one of the damaged fail-safe
straps were replaced. One fail-safe strap was repaired with the trim-out repair given in this service
bulletin.
CommentsDamageFlight HoursFlight Cycles
Straps had extreme corrosion.Corrosion left and right side,
cracks left and right side.
37,63413,472
Crack may have started from
damage in strap surface.
Crack left side.55,60916,403
Crack started at area of small
gouging and fretting on strap sur-
face.
Crack left side.72,70618,061
Strap had extreme corrosionCorrosion on left side71,64315,694
Fastener hole elongationCorrosion and cracks right side62,36018,545
Strap had extreme corrosionCorrosion on left side63,54923,337
Strap had extreme corrosionCorrosion on right side74,82323,987
Surface wear, fastener hole elon-
gation
Crack right side66,46731,809
Strap repaired with trim-out repair
given in this service bulletin.
Crack right side51,12936,635
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The crack growth in the fail-safe strap is not due to classical tensile fatigue. Boeing has found that the
fatigue is due to residual tension in the fail-safe strap. This tension is from locally high compressive
stress yielding the part. The fatigue occurs when the yielded section of the fail-safe strap repeatedly
goes through cyclic loading. The 767 fatigue test aircraft was tested for 100,000 flight cycles and cracks
were found in the fail-safe strap on both the right and left sides of the test airplane.
As of the release of revision 2 of this service bulletin, cracks have been found in 51 fail-safe straps on
41 airplanes. Of these cases, 42 fail-safe straps were repaired in accordance with this service bulletin
and nine fail-safe straps were not repairable and were replaced. Fail-safe straps were repaired on 33
airplanes with flight-cycles ranging from 9,250 to 38,490 and flight-hours ranging from 39,886 to 89,236.
Fail-safe straps were replaced on nine airplanes with flight-cycles ranging from 12,565 to 31,809 and
flight-hours ranging from 48,704 to 93,212. Also, four fail-safe straps have been replaced due to
corrosion damage (no cracks) on four airplanes with flight-cycles ranging from 12,540 to 23,987 and
flight-hours ranging from 37,634 to 74,823.
At the release of revision 2 of this service bulletin, there has also been one report of a crack found in
the "T" fitting which connects the fail-safe strap and the pressure deck. The cracked "T" fitting was
found at 13,449 flight-cycles / 74,008 flight-hours and the crack was located at the lower of the three
fastener holes common to the fail-safe strap. As a result of this finding, instruction to do an open hole
HFEC inspection of the "T" fitting has been added to this service bulletin.
As of the release of revision 3 of this service bulletin, cracks have been found in 108 fail-safe straps
on 79 airplanes. Of these cases, 94 fail-safe straps were repaired in accordance with this service
bulletin and 14 fail-safe straps were not repairable and were replaced. Fail-safe straps have been
repaired on airplanes with flight-cycles ranging from 8,214 to 41,120, and fail-safe straps have been
replaced on 14 airplanes with flight-cycles ranging from 12,565 to 40,421. Also, seven fail-safe straps
have been replaced due to corrosion damage only (no cracks) on seven airplanes with flight-cycles
ranging from 12,540 to 25, 867. Also, two fail-safe straps have been repaired (in place) to remove
corrosion from the tab area.
See Boeing Fleet Team Digest Article Number 767-FTD-53-02004 for pictures and more information
of cracks that have been found in-service on the fail-safe strap.
Boeing Service Related Problem (SRP) 767-SRP-53-0180 is related to this service bulletin.
Boeing Structural Item Interim Advisory (SIIA) 767-21 is related to this service bulletin.
The Federal Aviation Administration (FAA) has issued an Airworthiness Directive (AD) which requires
incorporation of this service bulletin for group 1-7, 10, 11 airplanes.
Revision 1 is sent to give instruction for an expanded inspection and also for a repair that can be made
if the damage found with the inspection is contained inside a specified area of the fail-safe strap. Also,
the inspections requirements given in this service bulletin are extended to model 767-400ER airplanes.
Revision 2 is sent to give more instruction about how to get access to the repair/modification area and
also to give instruction about how to repair skin fretting and/or corrosion. Also, revision 2 is sent to give
instruction to inspect adjacent structure in cases where a crack is indicated in the fail-safe strap with
the ultrasonic inspection. Also, revision 2 is sent to give revised fastener data and revised instruction
about how to support the airplane.
Revision 3 is sent to give clarification to and add flexibility to the work instruction.
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D. Description
A detailed and HFEC inspection for corrosion and crack damage are to be done over the visible surface
of the fail-safe strap on each side of the airplane. Also, an ultrasonic inspection is to be done to find if
there is a crack in the area of the fail-safe strap under (covered by) the "T" fitting which is connected
to the fail-safe strap and to the outboard edge of the sloping pressure deck.
If no corrosion or cracks are found with the inspections, repeat inspections are to be made at regular
intervals. If cracks and/or corrosion are found, a repair must be made before more flights. If crack
damage has not extended outside the tab part of the strap where the "T" fitting is attached, the fail-safe
strap repair given in this service bulletin is to be made. If crack damage extends outside the specified
area, it will be necessary to replace the strap. Boeing plans to release service bulletin 767-53-0116
with instructions to install a replacement strap.
NOTE: The change made to the airplane with the fail-safe strap repair given in this service bulletin
can be made at any time to stop the need for more of the inspections given in this service
bulletin.
PLEASE SEND A REPORT OF YOUR INSPECTION PROGRAM. REPORT IF CRACKS ARE FOUND
ALSO SEND A REPORT IF NO CRACKS ARE FOUND.
Send your report to: BOEING COMMERCIAL AIRPLANES GROUP ATTENTION: MANAGER, AIRLINE
SUPPORT
The airplane effectivity is divided into 11 groups due to differences in the parts that are used to make
the repair.
Revision 1 - No more work is necessary on group 1-7 airplanes inspected as shown in the initial release
of this service bulletin; however, the inspections given in revision 1 to this service bulletin are necessary
by the times given in paragraph 1.E Compliance.
NOTE: The group 1-7 airplanes identified in Revision 1 are contained in groups 1-7 plus group 10
and group 11 in Revision 2.
Revision 2 - No more work is necessary on airplanes inspected and/or changed in accordance with
revision 1 of this service bulletin.
Revision 3 - No more work is necessary on airplanes inspected and/or changed in accordance with
revision 2 of this service bulletin.
The work in this service bulletin is done in the maintenance zone(s) given below.
Group 1-2, 5, 10:
Affected Maintenance Zones
ZoneModel
131, 132, 141, 142, 241, 242, 551, 651767-200
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Group 3-4, 6:
Affected Maintenance Zones
ZoneModel
131, 132, 141, 142, 241, 242, 551, 651767-300
Group 7, 11:
Affected Maintenance Zones
ZoneModel
131, 132, 141, 142, 241, 242, 551, 651767-300F
Group 8-9:
Affected Maintenance Zones
ZoneModel
131, 132, 141, 142, 241, 242, 551, 651767-400ER
E. Compliance
Federal Aviation Administration (FAA) Airworthiness Directive 2004-19-06 R1, Amendment 39-13800
is related to this service bulletin.
The Federal Aviation Administration (FAA) will possibly release a new Airworthiness Directive related
to this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in
this service bulletin mandatory for all the airplanes affected by this service bulletin.
NOTE: For group 1-7 and group 10, 11 airplanes that have not been inspected in accordance with
the initial release of this service bulletin, Boeing recommends that the initial inspection include
the detailed, surface HFEC and ultrasonic inspections of the fail-safe strap given in
Accomplishment Instruction 3.B.5. Thereafter, the inspections are to be repeated at the
intervals given below.
Table 1: Inspection of the Fail-Safe Strap for Cracks and Corrosion - Group 1-11 Airplanes.
Repeat Interval
(Not to Exceed)
Compliance Time (Whichever Occurs
Last)
ActionCondition
6,000 flight-cycles
or 36 months,
whichever occurs
first.
Within 3,000 flight-cycles
after Nov. 1, 2004 (effec-
tive date of AD 2004-19-
06, R1).
Before 15,000
total flight-cycles
Do a detailed and a
surface HFEC inspec-
tion of the fail-safe
strap for cracks and
corrosion in accor-
dance with Accom-
plishment Instruction
3.B.
Group 1-7 airplanes
Group 10 airplanes
Group 11 airplanes
(a)
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Table 1: Inspection of the Fail-Safe Strap for Cracks and Corrosion - Group 1-11 Airplanes.
Repeat Interval
(Not to Exceed)
Compliance Time (Whichever Occurs
Last)
ActionCondition
6,000 flight-cycles
or 36 months,
whichever occurs
first.
Within 3,000 flight-cycles
after the revision 1 date
of this service bulletin.
Before 15,000
total flight-cycles
Do an ultrasonic in-
spection of the fail-
safe strap for cracks
in accordance with
Accomplishment In-
struction 3.B.
Group 1-7 airplanes
Group 10 airplanes
Group 11 airplanes
(a)
6,000 flight-cycles
or 36 months,
whichever occurs
first.
Within 3,000 flight-cycles
after the revision 1 date
of this service bulletin.
Before 15,000
total flight-cycles
Do a detailed and a
surface HFEC inspec-
tion of the fail-safe
strap for cracks and
corrosion and an ultra-
sonic inspection of the
fail-safe strap for
cracks in accordance
with Accomplishment
Instruction 3.B.
Group 8 airplanes
Group 9 airplanes
(a)
-Before further flightMake a repair in accor-
dance with Accom-
plishment Instruction
3.B.
Corrosion found
-Before further flightMake a repair in accor-
dance with Accom-
plishment Instruction
3.B. Also, do Detailed
and open hole HFEC
inspections of adja-
cent structure for
cracks and corrosion
in accordance with
Accomplishment In-
struction 3.B. Repair
adjacent structure as
necessary in accor-
dance with Accom-
plishment Instruction
3.B.
Crack found
--(b)Fail-safe strap trim
repair accomplished.
--(d)Fail-safe strap re-
placed and the re-
placement strap has
the revised edge
configuration.
(c)
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Table 1: Inspection of the Fail-Safe Strap for Cracks and Corrosion - Group 1-11 Airplanes.
Repeat Interval
(Not to Exceed)
Compliance Time (Whichever Occurs
Last)
ActionCondition
6,000 flight-cycles
or 36 months,
whichever occurs
first.
Before 12,000 flight-cycles after the replace-
ment fail-safe strap is installed.
(e)
Do a detailed and a
surface HFEC inspec-
tion of the fail-safe
strap for cracks and
corrosion and an ultra-
sonic inspection of the
fail-safe strap for
cracks in accordance
with Accomplishment
Instruction 3.B.
Fail-safe strap is re-
placed and the re-
placement strap
does not have the
revised edge config-
uration.
(c)
(a) Accomplishment of the fail-safe strap trim repair given in this service bulletin terminates the repeat inspection
requirement on the side of the airplane where the repair has been accomplished. The fail-safe strap trim repair
can be accomplished as a modification on a fail-safe strap that has no crack and/or corrosion damage as an
alternative to repeat inspections.
(b) After the fail-safe strap trim repair given in this service bulletin is accomplished, inspection in accordance
with this service bulletin will no longer be necessary on the side of the airplane where the repair was accom-
plished.
(c) The revised edge configuration does not include the tab for the three bolt connection between the fail-safe
strap and the T-fitting. With the revised edge configuration the T-fitting is not connected to the fail-safe strap.
The revised (no tab) edge configuration is equivalent to the post-repair configuration after the fail-safe strap
trim repair given in this service bulletin is accomplished.
(d) If a replacement fail-safe strap that has the revised edge configuration is installed, inspection in accordance
with this service bulletin will no longer be necessary on the side of the airplane where the replacement is
accomplished.
(e) For this condition, the "whichever occurs last" statement in the heading of the table does not apply.
F. Approval
This service bulletin was examined by the Federal Aviation Administration (FAA). The changes specified
in this service bulletin comply with the applicable regulations and are FAA approved, as well as European
Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/JAA approved
airplanes listed in the service bulletin effectivity. This service bulletin and its approval were based on
the airplane in its original Boeing delivery configuration or as modified by other approved Boeing
changes.
The jacking and support instruction given in this service bulletin is not approved for Group 1, configuration
2 airplanes or Group 4, configuration 2 thru 6 airplanes. For these airplanes, special instruction based
on the actual configuration of the airplane will be required for approval.
If an airplane has a non-Boeing modification or repair that affects a component or system also affected
by this service bulletin, the operator is responsible for obtaining appropriate regulatory agency approval
before incorporating this service bulletin.
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This service bulletin has been approved by the FAA. In addition, the Manager of the FAA Seattle Aircraft
Certification Office approves the action (i.e. inspection or modification) defined in this service bulletin
as an alternative method of compliance to the corresponding requirements of paragraphs (f) and (g)
of AD 2004-19-06 R1. All provisions of AD 2004-19-06 R1 that are not specifically referenced in the
above statement remain fully applicable and must be complied with.
G. Manpower
The first table below gives an estimate of the task-hours necessary to do the inspection given in figure
2 for each airplane. The second table below gives an estimate of the task-hours necessary to do the
repair work on one side of the airplane after a crack is found with the inspection. These estimates are
for direct labor only, done by an experienced crew. Adjust the estimate with operator task-hour data if
necessary. The estimate does not include lost time. These are some examples of lost time:
— Time to adjust to the workplace
— Time to schedule the work
— Time to examine the work
— Time to cure the materials
— Time to make the parts
— Time to find the tools.
Inspection Manpower - Group 1-11 Airplanes
Elapsed HoursTask-HoursNumber of Per-
sons
Task
0.51.02Open Access
1.02.02Examine
0.51.02Close Access
2.04.0TOTAL FOR EACH AIRPLANE
NOTE: The estimate given for the "examine" step in the tables below is the estimate for added
inspection that must be done when the repair is made.
Repair Manpower - Group 1-7, 10, 11 Airplanes
Elapsed HoursTask-HoursNumber of Per-
sons
Task
33.25133.04Open Access
1.02.02Examine
12.012.01Repair (a)
3.57.02Test (b)
35.25141.04Close Access
85.0295.0TOTAL FOR EACH AIRPLANE
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Repair Manpower - Group 1-7, 10, 11 Airplanes
Elapsed HoursTask-HoursNumber of Per-
sons
Task
(a) Time to accomplish the work given in figures 37 and 38 is not included in
the estimate. If the work given in figures 37 and 38 is necessary, more time
will be necessary.
(b) Leak tests done after hydraulic tubes are installed per AMM 20-10-09.
Repair Manpower - Group 8,9 Airplanes
Elapsed HoursTask-HoursNumber of Per-
sons
Task
33.25133.04Open Access
1.02.02Examine
12.012.01Repair (a)
4.59.02Test (b)
35.25141.04Close Access
86.0297.0TOTAL FOR EACH AIRPLANE
(a) Time to accomplish the work given in figures 37 and 38 is not included in
the estimate. If the work given in figures 37 and 38 is necessary, more time
will be necessary.
(b) Leak tests done after hydraulic tubes are installed per AMM 20-10-09.
H. Weight and Balance Changes
None.
I. Electrical Load Data
Not changed.
J. References
1. Existing Data:
a. Engineering Change Memo PRR B12901-63S
b. 767-200 Structural Repair Manual (SRM) 51, 51-10-02, 51-40-05, 51-50-02
c. 767-200SF Structural Repair Manual (SRM) 51, 51-10-02, 51-40-05
d. 767-300 Structural Repair Manual (SRM) 51, 51-10-02, 51-40-05, 51-50-02
e. 767-300BCF Structural Repair Manual (SRM) 51, 51-10-02, 51-40-05
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f. 767-300F Structural Repair Manual (SRM) 51, 51-10-02, 51-40-05, 51-50-02
g. 767-400 Structural Repair Manual (SRM) 51, 51-10-02, 51-40-05, 51-50-02
h. 767 Aircraft Maintenance Manual (AMM) 07-11-01, 07-11-03, 12-15-01, 12-15-02, 20-10-09,
25-21-01, 25-24-00, 25-25-01, 25-27-01, 25-52-00, 27-11-00, 27-11-08, 27-11-34, 27-11-36,
28-26-00, 29-11-00, 32-00-15, 32-00-20, 53-01-01
i. 767 Non-Destructive Testing (NDT) Manual, Part 4, 51-00-10, Part 4, 53-50-05, Part 6,
51-00-01, Part 6, 51-00-19, Part 6, Subject 51-00-16, Part 6, Subject 51-00-19
j. 767 Structural Item Interim Advisory (SIIA) 767-21
k. Boeing Drawing 012W6100
l. Boeing Fleet Team Digest Article Number 767-FTD-53-02004
m. Boeing Parts Standards Document D-590
n. Boeing Service Bulletin 767-53-0116
o. FAA Airworthiness Directive 2004-19-06 R1, Amendment 39-13800
p. Federal Aviation Administration (FAA) Airworthiness Directive 2004-19-06
q. Service Related Problem (SRP) 767-SRP-53-0180
r. Standard Overhaul Practices Manual (SOPM) 20-00-00, 20-11-03, 20-41-02, 20-43-03,
20-50-11, 20-50-19
2. Data supplied with this Service Bulletin:
None.
3. Installation Drawings Used in the Preparation of this Service Bulletin:
TitleDrawing Number
Splice Installation - Longeron at Rear Spar Bulkhead145T0083
Closure Panel Assembly - Pressure Deck, Section 45145T8752
Wheel Well Longeron Installation145T8800
Monoque Integration - Wing to Body100T1430
Monoque Integration - Section 45145T0010
Integration - Section 45 Crown to Keel Beam & Pressure Deck100T1482
Skin Panel - Machined, STA 785.9 to STA 1065, S-17L to Wing145T3321
Tubing Installation Main Wheel Well RH, STA 955 - STA 1065278T4572
Tubing Installation Main Wheel Well LH, STA 955 thru STA 1065278T4563
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TitleDrawing Number
Tubing Installation Inboard Rear Spar and Trailing Edge LH, BBL
97.42 to RSS 608.7
278T1373
Tubing Installation Inboard Rear Spar and Trailing Edge RH, BBL
97.42 to RSS 608.7
278T1374
Panel Support Installation - Wing T.E.113T1621
Integration - Section 45 - Crown to Keel Beam & Pressure Deck100T1482
Control Installation - Lateral251T1000
Seal Application - Section 45140T4500
These drawings were used to prepare this service bulletin. These drawings are not necessary to
make the specified changes, and are not supplied with this service bulletin. These drawings may
not be applicable to all airplane configurations or operators.
K. Publications Affected
1. Publications
None.
2. Damage Tolerance Based Structural Inspections:
Boeing has evaluated the repairs and/or changes in this service bulletin for effects on Fatigue
Critical Structure (FCS) and for changes to Damage Tolerance Inspections (DTI) required in the
Maintenance Program. This service bulletin affects FCS but no new DTIs are necessary.
L. Interchangeability and Intermixability of Parts
Accomplishment of this service bulletin does not affect interchangeability or intermixability of parts.
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### Page 29

2.    MATERIAL INFORMATION
A. Material - Price and Availability
Boeing can supply the kits shown in Paragraph 2.C., Parts Necessary For Each Airplane as shown
below. If there is a limit to the quantity (QTY) of available kits, a supply sequence is given by Spares.
More kits become available as shown in the Reorder Lead Time (ROLT). ROLT is calculated from the
date Boeing gets the purchase order.
Unit Price thru
Oct 31/06
ROLT
(Weeks)
QTYDateNameKit Number (a)
$11,331.0064101/17/07Kit - Group 1 Airplanes015T1788-1 (b)
$11,331.0064102/28/07Kit - Group 1 Airplanes015T1788-1 (b)
$11,331.0064103/28/07Kit - Group 1 Airplanes015T1788-1 (b)
$11,331.0064104/25/07Kit - Group 1 Airplanes015T1788-1 (b)
(a) Kit can be used to make a right side or left side repair.
(b) Not available for procurement. Superseded by 015T1788-51.
Unit Price thru
Oct 31/06
ROLT
(Weeks)
QTYDateNameKit Number (a)
$15,033.006428/14/06Kit - Group 2, 3, 10 Airplanes015T1788-2 (b)
$15,033.0064309/13/06Kit - Group 2, 3, 10 Airplanes015T1788-2 (b)
(a) Kit can be used to make a right side or left side repair.
(b) Not available for procurement. Superseded by 015T1788-52.
Unit Price thru
Oct 31/06
ROLT
(Weeks)
QTYDateNameKit Number (a)
$9,103.0065511/28/06Kit - Group 4, 7 Airplanes015T1788-3 (b)
$9,103.006551/4/07Kit - Group 4, 7 Airplanes015T1788-3 (b)
$9,103.006552/1/07Kit - Group 4, 7 Airplanes015T1788-3 (b)
$9,103.0065103/1/07Kit - Group 4, 7 Airplanes015T1788-3 (b)
$9,103.0065153/29/07Kit - Group 4, 7 Airplanes015T1788-3 (b)
$9,103.0065154/26/07Kit - Group 4, 7 Airplanes015T1788-3 (b)
$9,103.0065155/24/07Kit - Group 4, 7 Airplanes015T1788-3 (b)
$9,103.0065156/22/07Kit - Group 4, 7 Airplanes015T1788-3 (b)
$9,103.0065157/23/07Kit - Group 4, 7 Airplanes015T1788-3 (b)
(a) Kit can be used to make a right side or left side repair.
(b) Not available for procurement. Superseded by 015T1788-53.
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### Page 30

Unit Price thru
Oct 31/06
ROLT
(Weeks)
QTYDateNameKit Number (a)
$15,837.006427/9/07Kit - Group 5 Airplanes015T1788-4 (b)
(a) Kit can be used to make a right side or left side repair.
(b) Not available for procurement. Superseded by 015T1788-54.
Unit Price thru
Oct 31/06
ROLT
(Weeks)
QTYDateNameKit Number (a)
$9,054.006552/5/07Kit - Group 6, 11 Airplanes015T1788-5 (b)
$9,054.006553/5/07Kit - Group 6, 11 Airplanes015T1788-5 (b)
(a) Kit can be used to make a right side or left side repair.
(b) Not available for procurement. Superseded by 015T1788-55.
Unit Price thru
Oct 31/06
ROLT
(Weeks)
QTYDateNameKit Number (a)
$32,593.006527/31/07Kit - Group 8 Airplanes015T1788-6 (b)
(a) Kit can be used to make a right side or left side repair.
(b) Not available for procurement. Superseded by 015T1788-56.
Unit Price thru
Oct 31/06
ROLT
(Weeks)
QTYDateNameKit Number (a)
$32,727.006527/31/07Kit - Group 9 Airplanes015T1788-7 (b)
(a) Kit can be used to make a right side or left side repair.
(b) Not available for procurement. Superseded by 015T1788-57.
Unit PriceROLT
(weeks)
NameKit Number
$21,09869Kit - Group 1 Airplanes015T1788-51 (a) (b)
$25,518105Kit - Group 2, 3, 10 Airplanes015T1788-52 (a) (c)
$16,84272Kit - Group 4, 7 Airplanes015T1788-53 (a) (d)
$26,085105Kit - Group 5 Airplanes015T1788-54 (a) (e)
$17,21870Kit - Group 6, 11 Airplanes015T1788-55 (a) (f)
$27,239105Kit - Group 8 Airplanes015T1788-56 (a) (g)
$27,803105Kit - Group 9 Airplanes015T1788-57 (a) (h)
(a) Kit can be used to make a right side or left side repair.
(b) Replaces 015T1788-1
(c) Replaces 015T1788-2
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### Page 31

Unit PriceROLT
(weeks)
NameKit Number
(d) Replaces 015T1788-3
(e) Replaces 015T1788-4
(f) Replaces 015T1788-5
(g) Replaces 015T1788-6
(h) Replaces 015T1788-7
Unit PriceROLT
(weeks)
NameKit Number
$698(h)Supplemental Kit - Group 1 Airplanes015T1788-61 (a)
$1,816(h)Supplemental Kit - Group 2, 3, 10 Airplanes015T1788-62 (b)
$1,434(h)Supplemental Kit - Group 4, 7 Airplanes015T1788-63 (c)
$2,168(h)Supplemental Kit - Group 5 Airplanes015T1788-64 (d)
$1,756(h)Supplemental Kit - Group 6, 11 Airplanes015T1788-65 (e)
$2,467(h)Supplemental Kit - Group 8 Airplanes015T1788-66 (f)
$2,790(h)Supplemental Kit - Group 9 Airplanes015T1788-67 (g)
(a) 015T1788-61 plus 015T1788-1 is equivalent to 015T1788-51
(b) 015T1788-62 plus 015T1788-2 is equivalent to 015T1788-52
(c) 015T1788-63 plus 015T1788-3 is equivalent to 015T1788-53
(d) 015T1788-64 plus 015T1788-4 is equivalent to 015T1788-54
(e) 015T1788-65 plus 015T1788-5 is equivalent to 015T1788-55
(f) 015T1788-66 plus 015T1788-6 is equivalent to 015T1788-56
(g) 015T1788-67 plus 015T1788-7 is equivalent to 015T1788-57
(h) Contact Boeing for delivery data
Unit PriceROLT
(Weeks)
NamePart Number
$2,899(b)"T" Fitting (left side)100T1440U3 (a)
$2,899(b)"T" Fitting (right side)100T1440U4 (a)
(a) Replacement part for group 1 airplanes.
(b) Contact Boeing for delivery data.
Unit PriceROLT
(Weeks)
NamePart Number
$4,894(b)"T" Fitting (left side)145T1929U9 (a)
$4,894(b)"T" Fitting (right side)145T1929U10 (a)
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### Page 32

Unit PriceROLT
(Weeks)
NamePart Number
(a) Replacement part for group 2-11 airplanes
(b) Contact Boeing for delivery data.
B. Industry Support Information
Boeing warranty remedies are not available for the inspection or repair/modification given in this service
bulletin.
C. Parts Necessary For Each Airplane
1. Kits/Parts:
NOTE: One top kit and the items shown in Paragraph 2.C.2., Parts and Materials Supplied by
the Operator, are necessary for each side of the airplane.
To get the kits/parts shown below, refer to Paragraph 2.A., Material - Price and Availability.
Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-1-2-3-4-5-6
--FILLER1.....015T1788-10
--FILLER.11111140T0145-35
--SHIM1.....145T0083-5
--SHIM1.....145T0083-6
--SHIM.11111145T0083-16
--SHIM.11111145T0083-17
(a)-BOLT, HEX DRIVE3.....BACB30LX14A22
(a)-BOLT, HEX DRIVE3.....BACB30LX14A23
(a)-BOLT, HEX DRIVE5.....BACB30LX16A24
(a)-BOLT, HEX DRIVE1.....BACB30LX16A26
(a)-BOLT, HEX DRIVE.2.2..BACB30LX16A43
(a)-BOLT, HEX DRIVE..2.22BACB30LX16A46
(a)-BOLT, PROTRUDING
HD
66666.BACB30MY10K11X
(a)-BOLT, PROTRUDING
HD
.6666.BACB30MY10K12X
(a)-BOLT, PROTRUDING
HD
2.....BACB30MY8K6X
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### Page 33

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-1-2-3-4-5-6
(a)-BOLT, PROTRUDING
HD
5.....BACB30MY8K8X
(a)-BOLT444444444435BACB30NN3K7
(a)-BOLT, 100 DEG HEX
DR
9.....BACB30NW10K12X
(a)-BOLT, 100 DEG HEX
DR
29999.BACB30NW10K14X
(a)-BOLT, 100 DEG HEX
DR
.....9BACB30NW10K15X
(a)-BOLT, 100 DEG HEX
DR
.2222.BACB30NW10K16X
(a)-BOLT, 100 DEG HEX
DR
.....2BACB30NW10K17X
(a)-BOLT, 100 DEG HEX
DR
21111.BACB30NW10K20X
(a)-BOLT, 100 DEG HEX
DR
211111BACB30NW10K21X
(a)BOLT, 100 DEG HEX
DR
.....1BACB30NW10K22X
(a)-BOLT, 100 DEG HEX
DR
.4.4..BACB30NW10K23X
(a)-BOLT, HEX DRIVE..4.4.BACB30NW10K24X
(a)-BOLT, 100 DEG HEX
DR
.11114BACB30NW10K25X
(a)-BOLT, HEX DRIVE.1.1..BACB30NW10K26X
(a)-BOLT, HEX DRIVE..1.11BACB30NW10K27X
(a)-BOLT O/S.....1BACB30NW10K28X
(a)-BOLT, 100 DEG HEX
DR
.33331BACB30NW12K16X
(a)-BOLT, 100 DEG HEX
DR
.22222BACB30NW12K17X
(a)-BOLT, 100 DEG HEX
DR
311112BACB30NW12K18X
(a)-BOLT, 100 DEG HEX
DR
311111BACB30NW12K19X
(a)-BOLT, 100 DEG HEX
DR
6....1BACB30NW12K20X
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### Page 34

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-1-2-3-4-5-6
(a)-BOLT, 100 DEG HEX
DR
2.....BACB30NW12K21X
(a)-BOLT TITANIUM O/S.1111.BACB30NW12K22X
(a)-BOLT, 100 DEG HEX
DR
1....1BACB30NW12K23X
(a)-BOLT, 100 DEG HEX
DR
1.....BACB30NW12K24X
(a)-BOLT, 100 DEG
HEAD
.1.1..BACB30NW12K25X
(a)-BOLT TITANIUM O/S.1111.BACB30NW12K26X
(a)-BOLT, HEX DRIVE1.1.1.BACB30NW12K27X
(a)-BOLT, HEX DRIVE1....1BACB30NW12K28X
(a)-BOLT, HEX DRIVE.1.1.1BACB30NW12K29X
(a)-BOLT, HEX DRIVE.1.1..BACB30NW12K30X
(a)-BOLT, HEX DRIVE..1.1.BACB30NW12K32X
(a)-BOLT, HEX DRIVE..1.11BACB30NW12K33X
(a)-BOLT, HEX DRIVE.....1BACB30NW12K34X
(a)-BOLT, HEX DRIVE.4.4..BACB30NW14K21X
(a)-BOLT, 100 DEG HEX
DR
.2424.BACB30NW14K22X
(a)-BOLT, 100 DEG HEX
DR
.62624BACB30NW14K23X
(a)-BOLT, 100 DEG HEX
DR
.16162BACB30NW14K24X
(a)-BOLT, HEX DRIVE.....3BACB30NW14K25X
(a)-BOLT, 100 DEG HEX
DR
..1.1.BACB30NW14K26X
(a)-BOLT, HEX DRIVE.....1BACB30NW14K27X
(a)-BOLT, HEX DRIVE.....2BACB30NW14K28X
(a)-BOLT, HEX DRIVE.....1BACB30NW14K29X
(a)-BOLT, 100 DEG HEX
DR
.11111BACB30NW8K11X
(a)-BOLT, 100 DEG HEX
DR
444444BACB30NW8K12X
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### Page 35

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-1-2-3-4-5-6
(a)-BOLT, 100 DEG HEX
DR
888888BACB30NW8K13X
(a)-BOLT, 100 DEG HEX
DR
766666BACB30NW8K9X
(a)-BOLT, PROTRUDING
HD
.....12BACB30NX10K12X
(a)-BOLT, PROTRUDING
HD
1.....BACB30NX16K24X
(a)-BOLT, PROTRUDING
HD
1.....BACB30NX16K32X
(a)-BOLT, PROTRUDING
HD
222222BACB30NX6K10X
(a)-BOLT, PROTRUDING
HD
.....2BACB30NX6K12X
(a)-BOLT, PROTRUDING
HD
1010101010.BACB30NX6K5X
(a)-BOLT, PROTRUDING
HD
6666612BACB30NX6K6X
(a)-BOLT, PROTRUDING
HD
222222BACB30NX6K7X
(a)-BOLT, PROTRUDING
HD
844444BACB30NX6K8X
(a)-BOLT, PROTRUDING
HD
266668BACB30NX6K9X
(a)-BOLT, 100 DEG HEX
DR
1.....BACB30NY14K20X
(a)-BOLT, HEX DRIVE1.....BACB30NY14K21X
(a)-BOLT, 100 DEG HEX
DR
1.....BACB30NY14K22X
(a)-BOLT, 100 DEG HEX
DR
133333BACB30NY14K26X
(a)-BOLT, HEX DRIVE133333BACB30NY14K27X
(a)-BOLT, 100 DEG HEX
DR
5.....BACB30NY14K28X
(a)-BOLT, HEX DRIVE.2.2..BACB30NY16K22X
(a)-BOLT, 100 DEG HD.1.1..BACB30NY16K23X
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### Page 36

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-1-2-3-4-5-6
(a)-BOLT, 100 DEG HEX
DR
2.2.2.BACB30NY16K24X
(a)-BOLT, 100 DEG HEX
DR
..1.1.BACB30NY16K26X
(a)-BOLT, 100 DEG HEX
DR
.33333BACB30NY16K28X
(a)-BOLT, HEX DRIVE.22224BACB30NY16K29X
(a)-BOLT, 100 DEG HEX
DR
2....1BACB30NY16K30X
(a)-BOLT, HEX DRIVE.11111BACB30NY16K31X
(a)-BOLT, 100 DEG HEX
DR
17.7..BACB30NY16K32X
(a)-BOLT, HEX DRIVE..7.7.BACB30NY16K35X
(a)-BOLT, HEX DRIVE1.....BACB30NY16K37X
(a)-BOLT, HEX DRIVE.....7BACB30NY16K39X
(a)-BOLT, HEX DRIVE.4.4..BACB30NY18K33X
(a)-BOLT, HEX DRIVE..4.44BACB30NY18K35X
(a)-BOLT, HEX DRIVE4.....BACB30NY18K37X
(a)-HI-LOK.....4BACB30NZ6K5
(a)-HI-LOK888884BACB30NZ6K6
(a)-BOLT, 100 DEG HEX
DR
555555BACB30NZ8K7
(a)-BOLT, HEX DRIVE.4.4..BACB30YM20K43X
(a)-BOLT, 100 DEG HEX
DR
....4.BACB30YM20K46
(a)-BOLT..4..4BACB30YM20K46X
--COLLAR ASSEMBLY4.....BACC30AG10
--COLLAR ASSEMBLY18.....BACC30AG12
--COLLAR.8...6BACC30BH10
--COLLAR.12....BACC30BH12
--COLLAR, PRELOAD1519196619BACC30BH14
--COLLAR, SHEAR..8..19BACC30BL10
--COLLAR..12..12BACC30BL12
--COLLAR.....6BACC30BM10
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### Page 37

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-1-2-3-4-5-6
--COLLAR, PRELOAD.44444BACC30CP20C
--COLLAR1723232323.BACC30M10
--COLLAR383638383838BACC30M6
--COLLAR312424242424BACC30M8
--COLLAR1417176617BACC30X16
--COLLAR, PRELOAD444..4BACC30X18
--NUT...88.BACN10YR5CD
--SELF-LOCKING NUT...1212.BACN10YR6CD
--NUT, SELF-LOCK,
HEX
...1313.BACN10YT7CD
--NUT, SELF-LOCK,
HEX
...1212.BACN10YT8CD
--NUT1.....BACN11Z7CD
--NUT.11..1BACN11Z8CD
--NUT...44.BACN11Z9CD
--RIVET, 100 DEG646464646469BACR15BA6AD8C
--WASHER...88.NAS1149D0532J
--WASHER...1616.NAS1149D0563J
--WASHER, PLAIN...1212.NAS1149D0632J
--WASHER...2424.NAS1149D0663J
--WASHER1.....NAS1149D0763J
--WASHER, PLAIN.11..1NAS1149D0863J
--WASHER, PLAIN...44.NAS1149E0932P
--WASHER, PLAIN...88.NAS1149E0963P
--RIVET, BLIND313131313131NAS1399D6A7
--RIVET, BLIND111112NAS1399MW6A4
(a) If grip length shown is not available at Boeing, fasteners supplied in kits may be one grip length longer
than indicated. Also, if any fasteners part numbers listed are not available or have been superseded, substitute
fasteners may be supplied in kits. Boeing Document D-590 and Boeing Drawing 012T2100 are used to deter-
mine the part numbers used as substitutes.
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### Page 38

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-7
--FILLER1140T0145-35
--SHIM1145T0083-16
--SHIM1145T0083-17
(a)-BOLT, HEX DRIVE2BACB30LX16A46
(a)-BOLT35BACB30NN3K7
(a)-BOLT, 100 DEG HEX DR9BACB30NW10K15X
(a)-BOLT, 100 DEG HEX DR2BACB30NW10K17X
(a)-BOLT, 100 DEG HEX DR1BACB30NW10K21X
(a)-BOLT, 100 DEG HEX DR1BACB30NW10K22X
(a)-BOLT, 100 DEG HEX DR4BACB30NW10K25X
(a)-BOLT, HEX DRIVE1BACB30NW10K27X
(a)-BOLT, HEX DRIVE1BACB30NW10K28X
(a)-BOLT, 100 DEG HEX DR1BACB30NW12K16X
(a)-BOLT, 100 DEG HEX DR2BACB30NW12K17X
(a)-BOLT, 100 DEG HEX DR2BACB30NW12K18X
(a)-BOLT, 100 DEG HEX DR1BACB30NW12K19X
(a)-BOLT, 100 DEG HEX DR1BACB30NW12K20X
(a)-BOLT, 100 DEG HEX DR1BACB30NW12K23X
(a)-BOLT, HEX DRIVE1BACB30NW12K28X
(a)-BOLT, HEX DRIVE1BACB30NW12K29X
(a)-BOLT, HEX DRIVE1BACB30NW12K33X
(a)-BOLT, HEX DRIVE1BACB30NW12K34X
(a)-BOLT, 100 DEG HEX DR4BACB30NW14K23X
(a)-BOLT, 100 DEG HEX DR2BACB30NW14K24X
(a)-BOLT, HEX DRIVE3BACB30NW14K25X
(a)-BOLT, HEX DRIVE1BACB30NW14K27X
(a)-BOLT, HEX DRIVE2BACB30NW14K28X
(a)-BOLT, HEX DRIVE1BACB30NW14K29X
(a)-BOLT, 100 DEG HEX DR1BACB30NW8K11X
(a)-BOLT, 100 DEG HEX DR4BACB30NW8K12X
(a)-BOLT, 100 DEG HEX DR8BACB30NW8K13X
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### Page 39

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-7
(a)-BOLT, 100 DEG HEX DR6BACB30NW8K9X
(a)-BOLT, PROTRUDING HD12BACB30NX10K12X
(a)-BOLT, PROTRUDING HD2BACB30NX6K10X
(a)-BOLT, PROTRUDING HD2BACB30NX6K12X
(a)-BOLT, PROTRUDING HD12BACB30NX6K6X
(a)-BOLT, PROTRUDING HD2BACB30NX6K7X
(a)-BOLT, PROTRUDING HD4BACB30NX6K8X
(a)-BOLT, PROTRUDING HD8BACB30NX6K9X
(a)-BOLT, 100 DEG HEX DR3BACB30NY14K26X
(a)-BOLT, HEX DRIVE3BACB30NY14K27X
(a)-BOLT, 100 DEG HEX DR3BACB30NY16K28X
(a)-BOLT, HEX DRIVE4BACB30NY16K29X
(a)-BOLT, 100 DEG HEX DR1BACB30NY16K30X
(a)-BOLT, HEX DRIVE1BACB30NY16K31X
(a)-BOLT, HEX DRIVE7BACB30NY16K39X
(a)-BOLT, HEX DRIVE4BACB30NY18K35X
(a)-HI-LOK4BACB30NZ6K5
(a)-HI-LOK4BACB30NZ6K6
(a)-BOLT, 100 DEG HEX DR5BACB30NZ8K7
(a)-BOLT4BACB30YM20K46X
--COLLAR6BACC30BH10
--COLLAR, PRELOAD6BACC30BH14
--COLLAR, SHEAR11BACC30BL10
--COLLAR6BACC30BM10
--COLLAR, PRELOAD4BACC30CP20C
--COLLAR38BACC30M6
--COLLAR24BACC30M8
--COLLAR6BACC30X16
--NUT8BACN10YR5CD
--SELF-LOCKING NUT12BACN10YR6CD
--NUT, SELF-LOCK, HEX13BACN10YT7CD
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### Page 40

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-7
--NUT, SELF-LOCK, HEX12BACN10YT8CD
--NUT4BACN11Z9CD
--RIVET, 100 DEG69BACR15BA6AD8C
--WASHER8NAS1149D0532J
--WASHER16NAS1149D0563J
--WASHER, PLAIN12NAS1149D0632J
--WASHER24NAS1149D0663J
--WASHER, PLAIN4NAS1149E0932P
--WASHER, PLAIN8NAS1149E0963P
--RIVET, BLIND31NAS1399D6A7
(a) If grip length shown is not available at Boeing, fasteners supplied in kits may be
one grip length longer than indicated. Also, if any fasteners part numbers listed are
not available or have been superseded, substitute fasteners may be supplied in kits.
Boeing Document D-590 and Boeing Drawing 012T2100 are used to determine the
part numbers used as substitutes.
Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-51-52-53-54-55-56
--KIT-.....015T1788-51
--KIT.-....015T1788-52
--KIT..-...015T1788-53
--KIT...-..015T1788-54
--KIT....-.015T1788-55
--KIT.....-015T1788-56
--FILLER1.....015T1788-10
--FILLER.11111140T0145-35
--SHIM1.....145T0083-5
--SHIM1.....145T0083-6
--SHIM.11111145T0083-16
--SHIM.11111145T0083-17
(a)-BOLT, HEX DRIVE3.....BACB30LX14A22
(a)-BOLT, HEX DRIVE3.....BACB30LX14A23
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### Page 41

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-51-52-53-54-55-56
(a)-BOLT, HEX DRIVE5.....BACB30LX16A24
(a)-BOLT, HEX DRIVE1.....BACB30LX16A26
(a)-BOLT, HEX DRIVE.2.2..BACB30LX16A43
(a)-BOLT, HEX DRIVE..2.22BACB30LX16A46
(a)-BOLT, PROTRUDING
HD
66666.BACB30MY10K11X
(a)-BOLT, PROTRUDING
HD
.6666.BACB30MY10K12X
(a)-BOLT, PROTRUDING
HD
2.....BACB30MY8K6X
(a)-BOLT, PROTRUDING
HD
5.....BACB30MY8K8X
(a)-BOLT444444444435BACB30NN3K7
(a)-BOLT, 100 DEG HEX
DR
9.....BACB30NW10K12X
(a)-BOLT, 100 DEG HEX
DR
29999.BACB30NW10K14X
(a)-BOLT, 100 DEG HEX
DR
.....9BACB30NW10K15X
(a)-BOLT, 100 DEG HEX
DR
.2222.BACB30NW10K16X
(a)-BOLT, 100 DEG HEX
DR
.....2BACB30NW10K17X
(a)-BOLT, 100 DEG HEX
DR
21111.BACB30NW10K20X
(a)-BOLT, 100 DEG HEX
DR
211111BACB30NW10K21X
(a)BOLT, 100 DEG HEX
DR
.....1BACB30NW10K22X
(a)-BOLT, 100 DEG HEX
DR
.4.4..BACB30NW10K23X
(a)-BOLT, HEX DRIVE..4.4.BACB30NW10K24X
(a)-BOLT, 100 DEG HEX
DR
.11114BACB30NW10K25X
(a)-BOLT, HEX DRIVE.1.1..BACB30NW10K26X
(a)-BOLT, HEX DRIVE..1.11BACB30NW10K27X
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### Page 42

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-51-52-53-54-55-56
(a)-BOLT O/S.....1BACB30NW10K28X
(a)-BOLT, 100 DEG HEX
DR
.33331BACB30NW12K16X
(a)-BOLT, 100 DEG HEX
DR
.22222BACB30NW12K17X
(a)-BOLT, 100 DEG HEX
DR
311112BACB30NW12K18X
(a)-BOLT, 100 DEG HEX
DR
311111BACB30NW12K19X
(a)-BOLT, 100 DEG HEX
DR
6....1BACB30NW12K20X
(a)-BOLT, 100 DEG HEX
DR
2.....BACB30NW12K21X
(a)-BOLT TITANIUM O/S.1111.BACB30NW12K22X
(a)-BOLT, 100 DEG HEX
DR
1....1BACB30NW12K23X
(a)-BOLT, 100 DEG HEX
DR
1.....BACB30NW12K24X
(a)-BOLT, 100 DEG
HEAD
.1.1..BACB30NW12K25X
(a)-BOLT TITANIUM O/S.1111.BACB30NW12K26X
(a)-BOLT, HEX DRIVE1.1.1.BACB30NW12K27X
(a)-BOLT, HEX DRIVE1....1BACB30NW12K28X
(a)-BOLT, HEX DRIVE.1.1.1BACB30NW12K29X
(a)-BOLT, HEX DRIVE.1.1..BACB30NW12K30X
(a)-BOLT, HEX DRIVE..1.1.BACB30NW12K32X
(a)-BOLT, HEX DRIVE..1.11BACB30NW12K33X
(a)-BOLT, HEX DRIVE.....1BACB30NW12K34X
(a)-BOLT, HEX DRIVE.4.4..BACB30NW14K21X
(a)-BOLT, 100 DEG HEX
DR
.2424.BACB30NW14K22X
(a)-BOLT, 100 DEG HEX
DR
.62624BACB30NW14K23X
(a)-BOLT, 100 DEG HEX
DR
.16162BACB30NW14K24X
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### Page 43

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-51-52-53-54-55-56
(a)-BOLT, HEX DRIVE.....3BACB30NW14K25X
(a)-BOLT, 100 DEG HEX
DR
..1.1.BACB30NW14K26X
(a)-BOLT, HEX DRIVE.....1BACB30NW14K27X
(a)-BOLT, HEX DRIVE.....2BACB30NW14K28X
(a)-BOLT, HEX DRIVE.....1BACB30NW14K29X
(a)-BOLT, 100 DEG HEX
DR
.11111BACB30NW8K11X
(a)-BOLT, 100 DEG HEX
DR
444444BACB30NW8K12X
(a)-BOLT, 100 DEG HEX
DR
888888BACB30NW8K13X
(a)-BOLT, 100 DEG HEX
DR
766666BACB30NW8K9X
(a)-BOLT, PROTRUDING
HD
.....12BACB30NX10K12X
(a)-BOLT, PROTRUDING
HD
2.....BACB30NX16K24X
(a)-BOLT, PROTRUDING
HD
1.....BACB30NX16K32X
(a)-BOLT, PROTRUDING
HD
222222BACB30NX6K10X
(a)-BOLT, PROTRUDING
HD
.....2BACB30NX6K12X
(a)-BOLT, PROTRUDING
HD
1010101010.BACB30NX6K5X
(a)-BOLT, PROTRUDING
HD
6666612BACB30NX6K6X
(a)-BOLT, PROTRUDING
HD
222222BACB30NX6K7X
(a)-BOLT, PROTRUDING
HD
844444BACB30NX6K8X
(a)-BOLT, PROTRUDING
HD
266668BACB30NX6K9X
(a)-BOLT, 100 DEG HEX
DR
1.....BACB30NY14K20X
(a)-BOLT, HEX DRIVE1.....BACB30NY14K21X
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### Page 44

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-51-52-53-54-55-56
(a)-BOLT, 100 DEG HEX
DR
1.....BACB30NY14K22X
(a)-BOLT, 100 DEG HEX
DR
133333BACB30NY14K26X
(a)-BOLT, HEX DRIVE133333BACB30NY14K27X
(a)-BOLT, 100 DEG HEX
DR
2.....BACB30NY14K28X
(a)-BOLT, HEX DRIVE.2.2..BACB30NY16K22X
(a)-BOLT, 100 DEG HD.1.1..BACB30NY16K23X
(a)-BOLT, 100 DEG HEX
DR
2.2.2.BACB30NY16K24X
(a)-BOLT, 100 DEG HEX
DR
..1.1.BACB30NY16K26X
(a)-BOLT, 100 DEG HEX
DR
.33333BACB30NY16K28X
(a)-BOLT, HEX DRIVE.32324BACB30NY16K29X
(a)-BOLT, 100 DEG HEX
DR
21.1.1BACB30NY16K30X
(a)-BOLT, HEX DRIVE.11111BACB30NY16K31X
(a)-BOLT, 100 DEG HEX
DR
14141.BACB30NY16K32X
(a)-BOLT, 100 DEG HEX
DR
..1.1.BACB30NY16K33X
(a)-BOLT, HEX DRIVE..4.4.BACB30NY16K35X
(a)-BOLT, HEX DRIVE.....1BACB30NY16K36X
(a)-BOLT, HEX DRIVE1....1BACB30NY16K37X
(a)-BOLT, HEX DRIVE.....4BACB30NY16K39X
(a)-BOLT, HEX DRIVE.4.4..BACB30NY18K33X
(a)-BOLT, HEX DRIVE..4.44BACB30NY18K35X
(a)-BOLT, HEX DRIVE4.....BACB30NY18K37X
(a)-HI-LOK.....5BACB30NZ6K5
(a)-HI-LOK888888BACB30NZ6K6
(a)-BOLT, 100 DEG HEX
DR
555555BACB30NZ8K7
(a)-BOLT, HEX DRIVE3.....BACB30YM14K28X
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### Page 45

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-51-52-53-54-55-56
(a)-BOLT, HEX DRIVE.3.3..BACB30YM16K32X
(a)-BOLT, HEX DRIVE..3.3.BACB30YM16K35X
(a)-BOLT, HEX DRIVE.....3BACB30YM16K39X
(a)-BOLT, HEX DRIVE.4.4..BACB30YM20K43X
(a)-BOLT..4.44BACB30YM20K46X
--COLLAR ASSEMBLY4.....BACC30AG10
--COLLAR ASSEMBLY18.....BACC30AG12
--COLLAR.....6BACC30BH10
--COLLAR......BACC30BH12
--COLLAR, PRELOAD1366666BACC30BH14
--COLLAR.....6BACC30BM10
--COLLAR, PRELOAD.44444BACC30CP20C
--COLLAR173131232319BACC30M10
--COLLAR.1212..12BACC30M12
--COLLAR.1313..13BACC30M14
--COLLAR383638383838BACC30M6
--COLLAR312424242424BACC30M8
--COLLAR1415156615BACC30X16
--COLLAR, PRELOAD444..4BACC30X18
--NUT...88.BACN10YR5CD
--SELF-LOCKING NUT...1212.BACN10YR6CD
--NUT, SELF-LOCK,
HEX
...1313.BACN10YT7CD
--NUT, SELF-LOCK,
HEX
...99.BACN10YT8CD
--NUT3.....BACN11Z7CD
--NUT.33333BACN11Z8CD
--NUT...44.BACN11Z9CD
--RIVET, 100 DEG646464646469BACR15BA6AD8C
--RIVET, BLIND313131313131NAS1399D6A7
--RIVET, BLIND111112NAS1399MW6A4
--SEAL111111145T8008-5
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### Page 46

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-51-52-53-54-55-56
--SEAL111111145T8008-6
--RIVET6767676767.BACR15BA7AD8C
--SHIM111111BACS40R009B027F
--SHIM111111BACS40R015B015F
--SHIM111111BACS40R016B017F
--SHIM111111BACS40R017B032F
--WASHER, PLAIN...88.BACW10BP51DP
--WASHER, PLAIN...88.BACW10BP51NDP
--WASHER, PLAIN...1212.BACW10BP61DP
--WASHER, PLAIN...1212.BACW10BP61NDP
--WASHER, PLAIN6.....BACW10BP71DP
--WASHER, PLAIN.66666BACW10BP81DP
--WASHER, PLAIN...88.BACW10BP91DP
--RIVET323232323232NAS1398D6A3
(a) If grip length shown is not available at Boeing, fasteners supplied in kits may be one grip length longer
than indicated. Also, if any fasteners part numbers listed are not available or have been superseded, substitute
fasteners may be supplied in kits. Boeing Document D-590 and Boeing Drawing 012T2100 are used to deter-
mine the part numbers used as substitutes.
Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-57
--KIT-015T1788-57
--FILLER1140T0145-35
--SHIM1145T0083-16
--SHIM1145T0083-17
(a)-BOLT, HEX DRIVE2BACB30LX16A46
(a)-BOLT35BACB30NN3K7
(a)-BOLT, 100 DEG HEX DR9BACB30NW10K15X
(a)-BOLT, 100 DEG HEX DR2BACB30NW10K17X
(a)-BOLT, 100 DEG HEX DR1BACB30NW10K21X
(a)-BOLT, 100 DEG HEX DR1BACB30NW10K22X
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### Page 47

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-57
(a)-BOLT, 100 DEG HEX DR4BACB30NW10K25X
(a)-BOLT, HEX DRIVE1BACB30NW10K27X
(a)-BOLT, HEX DRIVE1BACB30NW10K28X
(a)-BOLT, 100 DEG HEX DR1BACB30NW12K16X
(a)-BOLT, 100 DEG HEX DR2BACB30NW12K17X
(a)-BOLT, 100 DEG HEX DR2BACB30NW12K18X
(a)-BOLT, 100 DEG HEX DR1BACB30NW12K19X
(a)-BOLT, 100 DEG HEX DR1BACB30NW12K20X
(a)-BOLT, 100 DEG HEX DR1BACB30NW12K23X
(a)-BOLT, HEX DRIVE1BACB30NW12K28X
(a)-BOLT, HEX DRIVE1BACB30NW12K29X
(a)-BOLT, HEX DRIVE1BACB30NW12K33X
(a)-BOLT, HEX DRIVE1BACB30NW12K34X
(a)-BOLT, 100 DEG HEX DR4BACB30NW14K23X
(a)-BOLT, 100 DEG HEX DR2BACB30NW14K24X
(a)-BOLT, HEX DRIVE3BACB30NW14K25X
(a)-BOLT, HEX DRIVE1BACB30NW14K27X
(a)-BOLT, HEX DRIVE2BACB30NW14K28X
(a)-BOLT, HEX DRIVE1BACB30NW14K29X
(a)-BOLT, 100 DEG HEX DR1BACB30NW8K11X
(a)-BOLT, 100 DEG HEX DR4BACB30NW8K12X
(a)-BOLT, 100 DEG HEX DR8BACB30NW8K13X
(a)-BOLT, 100 DEG HEX DR6BACB30NW8K9X
(a)-BOLT, PROTRUDING HD12BACB30NX10K12X
(a)-BOLT, PROTRUDING HD2BACB30NX6K10X
(a)-BOLT, PROTRUDING HD2BACB30NX6K12X
(a)-BOLT, PROTRUDING HD12BACB30NX6K6X
(a)-BOLT, PROTRUDING HD2BACB30NX6K7X
(a)-BOLT, PROTRUDING HD4BACB30NX6K8X
(a)-BOLT, PROTRUDING HD8BACB30NX6K9X
(a)-BOLT, 100 DEG HEX DR3BACB30NY14K26X
BOEING PROPRIETARY -
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### Page 48

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-57
(a)-BOLT, HEX DRIVE3BACB30NY14K27X
(a)-BOLT, 100 DEG HEX DR3BACB30NY16K28X
(a)-BOLT, HEX DRIVE4BACB30NY16K29X
(a)-BOLT, 100 DEG HEX DR1BACB30NY16K30X
(a)-BOLT, HEX DRIVE1BACB30NY16K31X
(a)-BOLT, HEX DRIVE1BACB30NY16K36X
(a)-BOLT, HEX DRIVE1BACB30NY16K37X
(a)-BOLT, HEX DRIVE4BACB30NY16K39X
(a)-BOLT, HEX DRIVE4BACB30NY18K35X
(a)-HI-LOK5BACB30NZ6K5
(a)-HI-LOK8BACB30NZ6K6
(a)-BOLT, 100 DEG HEX DR5BACB30NZ8K7
(a)-BOLT3BACB30YM16K39X
(a)-BOLT4BACB30YM20K46X
--COLLAR6BACC30BH10
--COLLAR, PRELOAD6BACC30BH14
--COLLAR, SHEAR11BACC30M10
--COLLAR6BACC30BM10
--COLLAR, PRELOAD4BACC30CP20C
--COLLAR38BACC30M6
--COLLAR24BACC30M8
--COLLAR6BACC30X16
--NUT8BACN10YR5CD
--SELF-LOCKING NUT12BACN10YR6CD
--NUT, SELF-LOCK, HEX13BACN10YT7CD
--NUT, SELF-LOCK, HEX9BACN10YT8CD
--NUT3BACN11Z8CD
--NUT4BACN11Z9CD
--RIVET, 100 DEG69BACR15BA6AD8C
--WASHER, PLAIN8BACW10BP51DP
--WASHER, PLAIN8BACW10BP51NDP
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Copyright © Unpublished Work - See page 1 for details.
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### Page 49

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-57
--WASHER, PLAIN12BACW10BP61DP
--WASHER, PLAIN12BACW10BP61NDP
--WASHER, PLAIN6BACW10BP81DP
--WASHER, PLAIN8BACW10BP91DP
--RIVET, BLIND31NAS1399D6A7
--RIVET32NAS1398D6A3
--RIVET, BLIND2NAS1399MW6A4
--SEAL1145T8008-5
--SEAL1145T8008-6
--SHIM1BACS40R009B027F
--SHIM1BACS40R015B015F
--SHIM1BACS40R016B017F
--SHIM1BACS40R017B032F
(a) If grip length shown is not available at Boeing, fasteners supplied in kits may be
one grip length longer than indicated. Also, if any fasteners part numbers listed are
not available or have been superseded, substitute fasteners may be supplied in kits.
Boeing Document D-590 and Boeing Drawing 012T2100 are used to determine the
part numbers used as substitutes.
Kit 015T1788
NotesExisting
Part Num-
ber
NameQTYNew Part Number
-61-62-63-64-65-66
--KIT - SUPPLEMENTAL-.....015T1788-61
--KIT - SUPPLEMENTAL.-....015T1788-62
--KIT - SUPPLEMENTAL..-...015T1788-63
--KIT - SUPPLEMENTAL...-..015T1788-64
--KIT - SUPPLEMENTAL....-.015T1788-65
--KIT - SUPPLEMENTAL.....-015T1788-66
(a)-BOLT,PROTRUD HD1.....BACB30NX16K24X
(a)-BOLT, HEX DRIVE.1.1..BACB30NY16K29X
(a)-BOLT, 100 DEG HEX DR.1.1..BACB30NY16K30X
(a)-BOLT, 100 DEG HEX DR..1.1.BACB30NY16K32X
(a)-BOLT, 100 DEG HEX DR..1.1.BACB30NY16K33X
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### Page 50

Kit 015T1788
NotesExisting
Part Num-
ber
NameQTYNew Part Number
-61-62-63-64-65-66
(a)-BOLT, HEX DRIVE.....1BACB30NY16K36X
(a)-BOLT, HEX DRIVE.....1BACB30NY16K37X
(a)-HI-LOK.....5BACB30NZ6K5
(a)-BOLT, HEX DRIVE3.....BACB30YM14K28X
(a)-BOLT, HEX DRIVE.3.3..BACB30YM16K32X
(a)-BOLT, HEX DRIVE..3.3.BACB30YM16K35X
(a)-BOLT, HEX DRIVE.....3BACB30YM16K39X
--COLLAR.88..19BACC30M10
--COLLAR.1212..12BACC30M12
--COLLAR.1313..13BACC30M14
--NUT3.....BACN11Z7CD
--NUT.33333BACN11Z8CD
--SEAL111111145T8008-5
--SEAL111111145T8008-6
--RIVET6767676767.BACR15BA7AD8C
--SHIM111111BACS40R009B027F
--SHIM111111BACS40R015B015F
--SHIM111111BACS40R016B017F
--SHIM111111BACS40R017B032F
--WASHER, PLAIN...88.BACW10BP51DP
--WASHER, PLAIN...88.BACW10BP51NDP
--WASHER, PLAIN...1212.BACW10BP61DP
--WASHER, PLAIN...1212.BACW10BP61NDP
--WASHER, PLAIN6.....BACW10BP71DP
--WASHER, PLAIN.66666BACW10BP81DP
--WASHER, PLAIN...88.BACW10BP91DP
--RIVET323232323232NAS1398D6A3
(a) If grip length shown is not available at Boeing, fasteners supplied in kits may be one grip length longer
than indicated. Also, if any fasteners part numbers listed are not available or have been superseded, substitute
fasteners may be supplied in kits. Boeing Document D-590 and Boeing Drawing 012T2100 are used to de-
termine the part numbers used as substitutes.
BOEING PROPRIETARY -
Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 26, 2002
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### Page 51

Kit 015T1788
NotesExisting Part
Number
NameQTYNew Part Number
-67
--KIT - SUPPLEMENTAL-015T1788-67
(a)-BOLT, HEX DRIVE1BACB30NY16K36X
(a)-BOLT, HEX DRIVE1BACB30NY16K37X
(a)-HI-LOK5BACB30NZ6K5
(a)-BOLT, HEX DRIVE3BACB30YM16K39X
--COLLAR, SHEAR11BACC30M10
--NUT3BACN11Z8CD
--WASHER, PLAIN8BACW10BP51DP
--WASHER, PLAIN8BACW10BP51NDP
--WASHER, PLAIN12BACW10BP61DP
--WASHER, PLAIN12BACW10BP61NDP
--WASHER, PLAIN6BACW10BP81DP
--WASHER, PLAIN8BACW10BP91DP
--RIVET32NAS1398D6A3
--SEAL1145T8008-5
--SEAL1145T8008-6
--SHIM1BACS40R009B027F
--SHIM1BACS40R015B015F
--SHIM1BACS40R016B017F
--SHIM1BACS40R017B032F
(a) If grip length shown is not available at Boeing, fasteners supplied in kits may be
one grip length longer than indicated. Also, if any fasteners part numbers listed are
not available or have been superseded, substitute fasteners may be supplied in kits.
Boeing Document D-590 and Boeing Drawing 012T2100 are used to determine the
part numbers used as substitutes.
2. Parts and Materials Supplied by the Operator:
NotesNameQTYPart Number / Specification
(a)Sealant1 gal.BMS 5-95 Type 1, Class B-2
(a)Primer1 gal.BMS 10-11, Type I
(a)Leveling Compound1 gal.BMS 5-125, Type III
(a)Aerodynamic Filler1 qt.BMS 5-142
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### Page 52

NotesNameQTYPart Number / Specification
(a) These materials are for the fail-safe strap trim repair. See the Qualified Products List at the
end of the Boeing Material Specification (BMS) for supplier data.
In addition to the above materials, replacement fasteners for removed pressure deck panels are
to be supplied by the operator. The quantity and specification of the fasteners that will be needed
to restore the pressure deck can be determined when the pressure deck panels are removed to
get access to the repair area.
3. Parts Modified and Reidentified:
None.
4. Parts Removed and Not Replaced:
None.
D. Parts Necessary to Change Spares
None.
E. Special Tooling - Price and Availability
None.
F. Special Tooling Necessary to do this Service Bulletin
No special tools or equipment are necessary to do the inspection in this service bulletin. But, maintenance
and overhaul tools in the manuals given in Paragraph 1.J., References, can be necessary. Examine
operator tool supply to make sure all necessary tools are available.
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3.    ACCOMPLISHMENT INSTRUCTIONS
A. GENERAL INFORMATION
CAUTION: KEEP THE WORK AREA, WIRES AND ELECTRICAL BUNDLES CLEAN OF METAL
PARTICLES OR CONTAMINATION WHEN YOU USE TOOLS. UNWANTED MATERIAL,
METAL PARTICLES OR CONTAMINATION CAUGHT IN WIRE BUNDLES CAN CAUSE
DAMAGE TO THE BUNDLES. DAMAGED WIRE BUNDLES CAN CAUSE SPARKS OR
OTHER ELECTRICAL DAMAGE.
NOTE: 1. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for
definition of the acronyms.
2. Obey all of the warnings and cautions given in the specified manual sections.
3. Unless shown differently, these dimensions and tolerances are used:
– Linear dimensions are in inches
– Tolerance on linear dimensions, other than rivet and bolt edge margins, is plus
or minus 0.03 inch
– Tolerance on rivet and bolt edge margin is plus or minus 0.05 inch
– Angular tolerance is plus or minus 2 degrees
– Hole dimensions for standard solid rivets and fasteners are in Structural Repair
Manual (SRM) Chapter 51
– Torque limits to tighten nuts and bolts are in SRM Chapter 51
4. Use the approved fastener and process material substitutions in accordance with
SRM Chapter 51.
5. Refer to the SWPM 20-10-11 and SWPM 20-10-12 for the wire installation procedures,
and SWPM 20-10-19 for the wire separation requirements, as accepted procedures.
6. If the length of any fastener specified in this service bulletin does not meet installation
standards given in SRM Chapter 51, then a fastener of the same specification, or
an approved substitute, with a length which meets the installation standards given
in SRM Chapter 51 may be used. In addition, washers may be installed for fastener
grip length in accordance with SRM Chapter 51.
7. A Detailed Inspection is defined as: An intensive examination of a specific item,
installation, or assembly to detect damage, failure, or irregularity. Available lighting
is normally supplemented with a direct source of good lighting at an intensity deemed
appropriate. Inspection aids such as mirrors, magnifying lenses, etc. may be
necessary. Surface cleaning and elaborate procedures may be required.
8. These work instructions refer to procedures included in other Boeing documents.
When the words "refer to" are used and the operator has an accepted alternative
procedure, the accepted alternative procedure can be used. When the words "in
accordance with" are included in the instruction, the procedure in the Boeing document
must be used.
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9. Boeing Service Letter 767-SL-51-036, Damage Reporting and Repair Plan/Design
Guidelines, is an acceptable procedure to request information from Boeing for
additional structural repair instructions. The Service Letter describes what information
must be provided to Boeing before a structural repair can be provided.
10. The instructions in Paragraph 3.B., Work Instructions and the figures can include
operation of tools or test equipment. Boeing Engineering Tool Drawings, the Illustrated
Tool and Equipment Manual, and the Special Tool and Ground Handling Drawing
Index contain data on versions of the tools or test equipment that you can use. It is
permitted to use replaced tools. It is not permitted to use superseded tools.
11. If it is necessary to remove more parts for access, you can remove those parts. If
you can get access without removing identified parts, it is not necessary to remove
all of the identified parts. Jacking and shoring limitations must be observed. Work
that is identified as access or restore work can be done in a different sequence than
the specified sequence relative to other work that is identified as access or restore
work respectively.
12. Where the work instructions include installation of a kept part, a new or serviceable
part with the same part number can be installed as an alternative to the kept part.
13. This service bulletin includes functional test procedures for the systems changed by
this service bulletin. More functional tests can possibly be necessary in accordance
with standard maintenance practices because of interruption to other airplane systems.
B. WORK INSTRUCTIONS
1. Install the main and nose landing gear downlocks. Refer to 767 AMM 32-00-20.
WARNING: MAKE SURE THERE ARE NO PERSONS OR EQUIPMENT IN THE WHEEL WELL
AREA BEFORE YOU MOVE THE GROUND RELEASE LEVER FOR THE DOOR. THE
DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR
DAMAGE TO EQUIPMENT.
2. Open the Main Landing Gear (MLG) doors. Refer to 767 AMM 32-00-15.
WARNING: MAKE SURE YOU INSTALL THE DOOR LOCKS CORRECTLY. THE DOORS OPEN
AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO
EQUIPMENT.
3. Install the MLG Door locks. Refer to 767 AMM 32-00-15.
4. Remove hydraulic power. Refer to 767 AMM 29-11-00.
5. Do a detailed inspection, a surface HFEC inspection, and an ultrasonic inspection of the fail-safe
strap on the right and left side of the airplane as given in figure 2.
If a crack is indicated by the ultrasonic inspection, do an open hole HFEC inspection at the lower
of the three fastener holes common to the fail-safe strap and the "T" fitting. Do this inspection in
accordance with 767 NDT, Part 6, 51-00-16 and inspect all the parts in the stackup at that location
(longeron splice plate, skin panel, fail-safe strap and "T" fitting).
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NOTE: The specified ultrasonic inspection procedure includes instruction to do an open hole
HFEC inspection to verify a crack indication. In addition to possible verification of a crack
in the fail-safe strap, the open hole HFEC inspection above is to include all parts in the
stackup. If a crack is found, a repair must be made in accordance with Paragraph 1.E.,
Compliance and instruction given below. It is possible that a crack in the failsafe strap
will not be indicated by the open hole HFEC inspection.
6. If no crack or corrosion is found, put the airplane back to a serviceable condition and do repeat
inspections as given in paragraph 1.E., Compliance.
NOTE: If the trim repair/modification given in this service bulletin is accomplished, the inspections
given in this service bulletin will no longer be necessary on the side of the airplane where
the repair/modification is accomplished. The trim repair/modification given in this service
bulletin can be accomplished as an alternative to the repeated inspections at any time
immediately after all the inspections given in figure 2 are accomplished. With a fail-safe
strap that is crack-free, the trim modification is accomplished in accordance with the same
instruction given for the crack repair, except that specified steps associated with crack
removal are not necessary.
7. If corrosion is found on the visible/accessible part of the fail-safe strap, try to find the limits of the
area(s) with corrosion and then contact Boeing for repair instruction. Unless instructed by Boeing
to do otherwise, after the corrosion is removed, apply chemical conversion coating and BMS 10-11,
Type 1 primer to all bare surfaces of the strap. Apply chemical conversion coating per SOPM
20-43-03. Apply primer per SOPM 20-41-02. Apply a top finish to match surrounding surfaces.
Put the airplane back to a serviceable condition and do repeat inspections as given in paragraph
1.E., Compliance.
If a crack is indicated in the fail-safe strap by any inspection given above, accomplish the trim
repair in accordance with the steps below. If a crack is also found in the "T" fitting, a replacement
"T" fitting is to be installed concurrent with the trim repair.
If a crack or corrosion is found in structure adjacent to the fail-safe strap, contact Boeing for repair
instructions.
CAUTION: THE STRUCTURE COULD BE DAMAGED WHEN IT IS DISASSEMBLED IF A
JACK/SUPPORT PROCEDURE OTHER THAN THE RECOMMENDED PROCEDURE
IS USED.
8. Defuel and jack/support the airplane. Refer to 767 AMM 28-26-00 for defueling instructions.
Jack/support the airplane in accordance with the figure identified in the table below or contact
Boeing to get special jack/support instruction if necessary.
NOTE: The jack and support loads given in the figures are based on OEW configuration. For
other than OEW configuration, including 767-200 and -300 model airplanes modified to
Boeing approved freighter configuration, contact Boeing and give the airplane weight,
center of gravity, and configuration changes to get adjusted jack and support loads.
Adjusted jack and support loads will also be required for non-freighter airplanes originally
delivered as zero occupancy.
Jack/Support FigureGroup
221, 2, 5, 10
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Jack/Support FigureGroup
233, 4, 6
248, 9
397, 11
9. Get access to the upper surface of the sloping pressure deck from body station 950-980 at the
side of body by removing the sidewall panel and the floor panel over this area. Remove interior
components as necessary to remove the sidewall and floor panels. Refer to the manual sections
given in the table below as necessary.
For left side repair only, remove left side floor panel near the side of body to get access to the
center turn buckles for aileron control cables A1A and A1B which are at body station 709 and 687
respectively. Alternatively, the turn buckles can be accessed from the forward cargo compartment
by removing the ceiling lining.
For right side repair only, remove right side floor panel near the side of body to get access to the
center turn buckles for aileron control cables A2A and A2B which are at body station 687 and 709
respectively. Alternatively, the turn buckles can be accessed from the forward cargo compartment
by removing ceiling lining.
Reference AMMComponent
767 AMM 25-25-01,
767-400 AMM 25-25-01
passenger seats
767 AMM 25-24-00,
767-400 AMM 25-24-00
closets and partitions
767 AMM 25-27-01,
767-400 AMM 25-27-01
floor covering
767 AMM 53-01-01,
767-400 AMM 53-01-01
floor panel (passenger)
767 AMM 53-01-06floor panel (freighter)
767 AMM 25-21-01,
767-400 AMM 25-21-01
sidewall lining (passenger)
767 AMM 25-59-00sidewall lining (freighter)
767 AMM 25-52-02,
767-400 AMM 25-52-02
cargo compartment ceiling lining
NOTE: The work given in this step is access work that can be accomplished before the airplane
is jacked/supported.
10. Remove parts as necessary to get external access at the wing/body interface. Refer to the applicable
figure identified in the table below.
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Access Figure -
Right Side
Access Figure -
Left Side
Group
26251-7, 10, 11
28278, 9
NOTE: The work given in this step is access work that can be accomplished before the airplane
is jacked/supported.
11. Remove/keep hydraulic tubes as necessary to get clear access to the repair area. Refer to the
applicable figure identified in the table below.
Figure - Hydraulic Tube
Removal - Right Side
Figure - Hydraulic Tube
Removal - Left Side
Group
14131-7, 10, 11
21208, 9
NOTE: The work given in this step is access work that can be accomplished before the airplane
is jacked/supported.
12. Pull and stow the aileron control cables that go through the pressure deck. Refer to the applicable
figure identified in the table below.
Figure - Control Cable
Pull/Stow - Right Side
Figure - Control Cable
Pull/Stow - Left Side
Group
3231All
NOTE: The work given in this step is access work that can be accomplished before the airplane
is jacked/supported.
13. Remove parts from the pressure deck. Refer to the applicable figure identified in the table below.
Figure - Pressure Deck
Disassembly - Right Side
Figure - Pressure Deck
Disassembly - Left Side
Group
3029All
14. Remove the "T" fitting connected to the fail-safe strap. Refer to the applicable figure identified in
the table below.
NOTE: The figure given in the table below shows more than how to remove the "T" fitting. For
the work given in this step, refer to this figure only to remove the "T" fitting.
Figure - Right SideFigure - Left SideGroup
431
652, 3, 10
874, 7
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Figure - Right SideFigure - Left SideGroup
1095
12116, 11
17168
19189
15. Do open hole and surface HFEC inspections of the fail-safe strap as given in figure 15.
16. If the cracks in the fail-safe strap are thought to be shorter than the limit given in figure 15, remove
fasteners/parts identified in the applicable figure given in step 14 above as necessary to install a
protective shim between the skin and the fail-safe strap in accordance with figure 15.
NOTE: Fasteners identified in the figures given above in step 14 must be removed/replaced as
necessary to remove/reinstall the "T"-fitting. The remaining fasteners identified in the
figures must be removed/replaced only as is necessary to accomplish all the work steps
given in figure 15 (and, if necessary, all the work steps given in figure 37) without causing
damage to the skin or other structure.
17. Remove crack damage from the fail-safe strap in accordance with figure 15.
If there is a crack in the fail-safe strap that cannot be repaired with the work given in figure 15,
contact Boeing to get instruction to install a replacement fail-safe strap.
NOTE: Boeing plans to release service bulletin 767-53-0116 to give instruction to install a
replacement fail-safe strap.
18. Do a detailed inspection of the removed "T" fitting for fretting and corrosion damage. If damage is
found on the "T" fitting around any of the holes for the three fasteners that connect the "T" fitting
to the fail-safe strap, it will be necessary to install a replacement "T" fitting when the structure is
reassembled.
Also do an open hole inspection for cracks in the "T" fitting at the locations of the three fasteners
that connect the "T" fitting to the fail-safe strap. Do this inspection in accordance with 767 NDT,
Part 6, 51-00-16. If there is a crack in the "T" fitting, it will be necessary to install a replacement
"T" fitting when the structure is reassembled.
19. Do a detailed inspection of the internal surface of the skin panel for fretting and corrosion damage
in the area where the "T" fitting was installed. If damage is found in this area, do the repair work
given in figure 37 as necessary to remove the damage from the skin. If the skin damage cannot
be fully removed with the repair given in figure 37, contact Boeing for special instruction.
20. Make a disk filler in accordance with figure 38 for each repair spotface that has been made in the
skin. If necessary, do more work in the repaired area of the skin in accordance with figure 37 to
satisfy the clearance, angularity and other assembly requirements given in figure 38. Keep disk
filler(s) for installation at the same spotface in a later work step.
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21. Install new and removed/kept parts as given in the applicable figure identified in the table below.
If spotface(s) have been made in the skin, install disk filler(s) at the spotface(s) and make sure
that the clearance, angularity and other assembly requirements are satisfied in accordance with
figure 38. If necessary, do more work in the repaired area of the skin in accordance with figure 37
to satisfy the fit requirements.
NOTE: Fasteners identified in the figures given in the table below must be removed/replaced as
necessary to install a protective shim in accordance with figure 15 (and, if necessary, all
the work steps given in figure 37) without causing damage to the skin or other structure.
The oversize replacement fasteners identified in the figures given in the table below must
be installed where the initial fasteners have been removed.
Figure - Right SideFigure - Left SideGroup
431
652, 3, 10
874, 7
1095
12116, 11
17168
19189
22. Install the parts that were removed from the pressure deck. Refer to the applicable figure identified
in the table below.
Figure - Pressure Deck Re-
store - Right Side
Figure - Pressure Deck Re-
store - Left Side
Group
3635All
23. Restore the aileron control cables that go through the pressure deck. Refer to the applicable figure
identified in the table below.
Figure - Control Cable
Pull/Stow - Right Side
Figure - Control Cable
Pull/Stow - Left Side
Group
3433All
NOTE: The work given in this step is restore work that can be accomplished after the airplane
is lowered off the jacks.
24. Do a pressure leak test at the reinstalled pressure deck panels. Refer to AMM 05-51-24 for leak
test procedure or use operators preferred alternative test procedure.
NOTE: The work given in this step can be accomplished at any time between the work given in
the previous step and the final step below.
25. Install the removed/kept tubes as given in the applicable figure identified in the table below.
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Hydraulic Tube Replace -
Right Side
Hydraulic Tube Replace -
Left Side
Group
14131-7, 10, 11
21208, 9
26. Install parts removed to get external access at the wing/body interface. Refer to the applicable
figure identified in the table below.
Figure - Right SideFigure - Left SideGroup
26251-7, 10, 11
28278, 9
NOTE: The work given in this step is restore work that can be accomplished after the airplane
is lowered off the jacks.
27. Restore hydraulic power. Refer to 767 AMM 29-11-00.
28. Do a leak check on all hydraulic tubes disconnected during the repair procedure. Refer to 767
AMM 20-10-09, or use operators preferred alternative test procedure.
29. Remove the main landing gear door locks and close the main landing gear doors. Refer to 767
AMM 32-00-15.
WARNING: THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS
OR DAMAGE TO EQUIPMENT.
30. Remove the body and wing supplemental supports and the nose gear axle jack. Lower the airplane
off the jacks and service the nose and main gear struts. Refer to 767 AMM 07-11-01.
31. Remove the main and nose landing gear downlocks. Refer to 767 AMM 32-00-20.
32. Do functional checks of the aileron control system mechanisms affected by the pull/stow of the
control cables. Refer to the manual identified in the table below for instruction, or use operator's
equivalent check procedures.
Functional Check ReferenceMechanism
767 AMM 27-11-08Lateral Control Feel, Centering, and Trim Mechanism
767 AMM 27-11-36Aileron Control Override Mechanism
767 AMM 27-11-34Right Aileron Control Output Quadrant
Refer to 767 AMM 27-11-00 for Aileron and Aileron Trim Control System - Adjustment/Test
procedures.
33. Put the airplane back to a serviceable condition.
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