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Commercial Airplanes 767 Service Bulletin
SPECIAL ATTENTION Number: 767-57-0121 Original Issue: October 07, 2010 ATA System: 5700 SUBJECT: WINGS - Leading Edge and Leading Edge Devices - Leading Edge Fluid Drainage Path Change 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BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2010 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter.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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2.0
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Table of Contents
Summary5
1. PLANNING INFORMATION7
A. Effectivity7
1. Airplanes7
2. Spares Affected ........................................ 1 3 B. Concurrent Requirements ...................................... 1 3 C. Reason ................................................ 1 3 D. Description .............................................. 1 3 E. Compliance .............................................. 1 3 F. Approval ............................................... 1 4 G. Manpower .............................................. 1 4 H. Weight and Balance Changes .................................... 1 5 I. Electrical Load Data ......................................... 1 5 J. References .............................................. 1 5
1. Existing Data .......................................... 1 5
2. Data supplied with this Service Bulletin ............................ 1 5
3. Installation Drawings Used in the Preparation of this Service Bulletin ............ 1 6 K. Publications Affected ........................................ 1 6 L. Interchangeability and Intermixability of Parts ........................... 1 6
2. MATERIAL INFORMATION ........................................ 1 7 A. Material - Price and Availability ................................... 1 7 B. Industry Support Information .................................... 1 7 C. Parts Necessary For Each Airplane ................................. 1 8
1. Kits/Parts ............................................ 1 8
2. Parts and Materials Supplied by the Operator ........................ 1 9
3. Parts Modified and Reidentified ................................ 2 0
4. Parts Removed and Not Replaced .............................. 2 0 D. Parts Necessary to Change Spares ................................. 2 0 E. Special Tooling - Price and Availability ............................... 2 0 F. Special Tooling Necessary to do this Service Bulletin ....................... 2 0
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 2 1 A. GENERAL INFORMATION ..................................... 2 1 B. WORK INSTRUCTIONS ....................................... 2 2 FIGURE 1: LEFT WING SKIN PANEL 521AB CHANGE ......................... 2 5 FIGURE 2: RIGHT WING SKIN PANEL 621AB CHANGE ........................ 2 7 FIGURE 3: LEFT WING SKIN PANEL 521EB CHANGE ......................... 2 9 FIGURE 4: RIGHT WING SKIN PANEL 621EB CHANGE ........................ 3 3 FIGURE 5: LEFT WING SEAL DOOR CHANGE AT OSS 424.097 ................... 3 7 FIGURE 6: RIGHT WING SEAL DOOR CHANGE AT OSS 424.097 ................... 4 0 FIGURE 7: LEFT WING RIB CHANGE AT OSS 464.475 ......................... 4 3 FIGURE 8: RIGHT WING RIB CHANGE AT OSS 464.475 ........................ 4 7 FIGURE 9: LEFT WING LEADING EDGE SEALING ........................... 5 1 FIGURE 10: RIGHT WING LEADING EDGE SEALING .......................... 5 5 FIGURE 11: LEFT WING RIB SEALING AT OSS 464.475 ......................... 5 9 FIGURE 12: RIGHT WING RIB SEALING AT OSS 464.475 ........................ 6 4
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Commercial Airplanes 767 Service Bulletin
SPECIAL ATTENTION SummaryNumber: 767-57-0121Original Issue: October 07, 2010 ATA System: 5700 SUBJECT: WINGS - Leading Edge and Leading Edge Devices - Leading Edge Fluid Drainage Path Change BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.
CONCURRENT REQUIREMENTS None.
BACKGROUND This service bulletin gives instructions to modify the fluid drain path in the wing leading edge area, forward of the wing front spar. If this service bulletin is not incorporated, flammable fluids accumulating in the wing leading edge may drain inboard and onto the engine exhaust nozzle, which could result in a fire.
Boeing has received a report of leaking fuel from the wing leading edge area at the inboard end of the number 5 leading edge slat of a 737 airplane. The leak was discovered during a post flight inspection with a fuel quantity of over 2500 lbs. Subsequent investigation found that the leak occurred in an area of the front spar that does not have a proper drain path. This led to the fuel draining onto the engine exhaust nozzle. The leak appears to have been caused by a loose retaining nut of the slat track down stop and is the subject of Boeing Service Letter 737-SL-57-084.
Accomplishment of this service bulletin will make sure that there is a drain path to safely direct all fluid leakages from the wing leading edge away from the engine exhaust area.
Boeing Service Related Problem (SRP) 767-SRP-57-0213 is related to this service bulletin.
ACTION (PRR B12901-92S) Get access to the leading edge of the wing by removing access panels. Repair two access panels on each wing.
Install parts in rib and slat door. Apply sealant to create a fuel vapor barrier and a drain path. Close access.
EFFECTIVITY 767-200, -300, -300F, -400ER Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes.
COMPLIANCE The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin mandatory.
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Boeing recommends that the change given in this service bulletin be done within 60 months after the original issue date of this service bulletin.
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are available for airplanes in warranty as of November 15, 2007. Please refer to Paragraph 2.B., Industry Support Information.
MANPOWER Elapsed HoursTotal Task HoursAirplanes
19.7522.00All Airplanes Refer to Paragraph 1.G., Manpower.
MATERIAL INFORMATION Boeing Supplied Kits/Parts.
Refer to Paragraph 2.A., Material - Price and Availability.
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Commercial Airplanes 767 Service Bulletin
SPECIAL ATTENTION Number: 767-57-0121 Original Issue: October 07, 2010 ATA System: 5700 SUBJECT: WINGS - Leading Edge and Leading Edge Devices - Leading Edge Fluid Drainage Path Change BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.
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 airplane(s) shown below. An equivalent change is on subsequent production airplanes. Refer to PRR B12901-92S for data about this change.
DESCRIPTIONCONFIGURATIONGROUP 767 Airplanes with line number 1-992.-1 Airplane Models:
767-200, 767-300, 767-300F, 767-400ER GroupVariable Number 1VA001 - VA020 1VA301 - VA315 1VA501 - VA530 1VA701 - VA719 1VA801 - VA810 1VB001 - VB002 1VB051 - VB055 1VB101 - VB125
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GroupVariable Number 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 1VF001 - VF002 1VF041 - VF042 1VF051 1VF061 - VF062 1VF071 - VF072 1VF091 - VF093 1VF101 - VF102 1VF161 - VF162 1VF171 - VF172 1VF180 - VF184 1VF251 1VK001 - VK016 1VK021 - VK022 1VK031 - VK056 1VK081 - VK113
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GroupVariable Number 1VK131 - VK133 1VK141 - VK148 1VK161 - VK164 1VK171 1VK181 1VK186 1VL001 - VL006 1VL011 1VL701 - VL703 1VL751 - VL755 1VL806 - VL807 1VL871 - VL873 1VL891 - VL900 1VL911 - VL914 1VL931 - VL932 1VL941 1VN001 - VN041 1VN051 - VN064 1VN081 - VN099 1VN111 - VN127 1VN130 - VN137 1VN151 - VN158 1VN163 - VN168 1VN171 - VN174 1VN191 - VN198 1VN211 - VN212 1VN221 - VN225 1VN231 - VN234 1VN241 - VN243 1VN251 - VN276 1VN291 - VN293 1VN301 - VN314 1VN371 - VN372
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GroupVariable Number 1VN376 1VN381 - VN388 1VN421 - VN427 1VN436 1VN471 - VN472 1VN491 - VN513 1VN531 - VN532 1VN536 - VN537 1VN541 - VN542 1VN546 - VN547 1VN551 1VN556 - VN557 1VN561 - VN562 1VN631 - VN638 1VN651 - VN658 1VN671 - VN672 1VN676 1VN681 - VN691 1VN731 - VN732 1VN751 - VN753 1VN791 - VN792 1VN811 - VN813 1VN921 - VN922 1VN931 - VN936 1VN951 - VN953 1VN966 - VN972 1VQ001 - VQ021 1VQ071 - VQ086 1VQ111 1VR051 - VR060 1VR081 1VR084 1VR086 - VR089
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GroupVariable Number 1VR106 - VR109 1VR201 - VR211 1VR251 1VR256 - VR260 1VR266 - VR272 1VR401 1VR421 - VR423 1VR426 1VR441 1VR461 1VR471 - VR472 1VS051 - VS056 1VS061 1VS066 - VS070 1VS073 - VS078 1VS091 - VS104 1VS111 - VS113 1VS131 - VS133 1VS136 - VS137 1VS176 - VS177 1VS186 - VS187 1VS196 - VS203 1VS206 - VS208 1VS211 1VS216 - VS217 1VS231 1VS246 - VS248 1VS261 - VS263 1VS266 - VS274 1VS291 - VS293 1VS301 - VS303 1VS306 - VS311 1VS316
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GroupVariable Number 1VS321 - VS324 1VS331 - VS333 1VS336 - VS337 1VS366 - VS367 1VS381 - VS382 1VS391 - VS392 1VS401 1VS426 - VS428 1VS466 - VS472 1VS486 1VS496 - VS497 1VS506 - VS507 1VS526 1VS546 - VS549 1VS701 - VS736 1VS751 - VS759 1VS821 - VS825 1VS841 - VS844 1VS861 1VS881 - VS883 1VS891 1VS896 1VS901 - VS912 1VS916 1VS921 - VS925 1VS931 - VS933 1VS941 1VT501 1VT511 - VT513 1VT521 - VT523 1VT531 - VT533 1VT541 - VT543 1VV001
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