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Commercial Airplanes 767 Service Bulletin Number: 767-57A0131 Original Issue: October 30, 2012 Revision 1: May 08, 2013 ATA System: 5750 SUBJECT: WINGS - Trailing Edge and Trailing Edge Devices - Outboard Flap Support Rib Nut Fracture Inspection Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 300-774). An export license may be required before it is used for development, production or use by foreign persons from specific countries. The controller of this data has the individual responsibility to abide by all export laws.
9E991ECCN:
BOEING PROPRIETARY, CONFIDENTIAL AND/OR TRADE SECRET Copyright © 2012 Boeing.
Unpublished Work. All Rights Reserved.
Treatment of this document and its content is governed by contract with Boeing. Rights to use this document are licensed on a per aircraft basis and such rights may not be transferable. For more information, contact The Boeing Company.
Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner, BBJ, DC-8, DC-9, DC-10, KC-10, KC-46, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8, Poseidon and Boeing liveries are all trademarks owned by The Boeing Company; and no trademark license is granted in connection with this document unless provided in writing by Boeing.
Original Issue: October 30, 2012 767-57A0131Revision 1: May 08, 2013 1 of 75
2.0
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 30, 2012 767-57A0131Revision 1: May 08, 2013 2 of 75 BOEING SERVICE BULLETIN 767-57A0131
BLANK PAGE
Table of Contents
Revision Transmittal Sheet5
Summary7
1. PLANNING INFORMATION ........................................ 1 1 A. Effectivity ............................................... 1 1
1. Airplanes ............................................ 1 1
2. Spares Affected ........................................ 1 7 B. Concurrent Requirements ...................................... 1 7 C. Reason ................................................ 1 7 D. Description .............................................. 1 8 E. Compliance .............................................. 1 8 F. Approval ............................................... 2 1 G. Manpower .............................................. 2 1 H. Weight and Balance Changes .................................... 2 3 I. Electrical Load Data ......................................... 2 3 J. References .............................................. 2 3
1. Existing Data: ......................................... 2 3
2. Data Supplied with this Service Bulletin: ........................... 2 3
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 2 3 K. Publications Affected ........................................ 2 4 L. Interchangeability and Intermixability of Parts ........................... 2 4 M. Software Accomplishment Summary ................................ 2 4
2. MATERIAL INFORMATION ........................................ 2 5 A. Material - Price and Availability ................................... 2 5 B. Industry Support Information .................................... 2 6 C. Parts Necessary for Each Airplane ................................. 2 6
1. Kits/Parts ............................................ 2 6
2. Parts and Materials Supplied by the Operator ........................ 2 8
3. Parts Modified and Reidentified ................................ 3 2
4. Parts Removed and Not Replaced .............................. 3 2 D. Parts Necessary to Change Spares ................................. 3 2 E. Special Tooling - Price and Availability ............................... 3 2 F. Special Tooling Necessary to do this Service Bulletin ....................... 3 2
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 3 3 A. GENERAL INFORMATION ..................................... 3 3 B. WORK INSTRUCTIONS ....................................... 3 4 FIGURE 1: CAP SEAL DETAILED INSPECTION FOR SUPPORT RIB # 1 ............... 4 0 FIGURE 2: CAP SEAL DETAILED INSPECTION FOR SUPPORT RIB # 2 ............... 4 2 FIGURE 3: CAP SEAL DETAILED INSPECTION FOR SUPPORT RIB # 7 ............... 4 4 FIGURE 4: CAP SEAL DETAILED INSPECTION FOR SUPPORT RIB # 8 ............... 4 6 FIGURE 5: FASTENER DETAILED INSPECTION ............................ 4 8 FIGURE 6: FASTENER REPLACEMENTS FOR SUPPORT RIB # 1 .................. 4 9 FIGURE 7: FASTENER REPLACEMENTS FOR SUPPORT RIB # 2 .................. 5 3 FIGURE 8: FASTENER REPLACEMENTS FOR SUPPORT RIB # 7 .................. 5 7 FIGURE 9: FASTENER REPLACEMENTS FOR SUPPORT RIB # 8 .................. 6 1 FIGURE 10: NUT MEASUREMENT FOR CORRECT TYPE [Group 2] .................. 6 5 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 30, 2012 767-57A0131Revision 1: May 08, 2013 3 of 75 BOEING SERVICE BULLETIN 767-57A0131
FIGURE 11: NUT MEASUREMENT FOR CORRECT TYPE [Group 2-3] ................. 6 7 APPENDIX A: PART NUMBERS AND QUANTITIES BY SUPPORT RIB NUMBER ............ 6 9 APPENDIX B: NOMINAL HOLE DIAMETERS FOR OUTBOARD TRAILING EDGE FLAP SUPPORT RIB AND ACTUATOR SUPPORT FITTINGS .............................. 7 5 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 30, 2012 767-57A0131Revision 1: May 08, 2013 4 of 75 BOEING SERVICE BULLETIN 767-57A0131
Commercial Airplanes 767 Service Bulletin Revision Transmittal SheetNumber: 767-57A0131Original Issue: October 30, 2012 Revision 1: May 08, 2013 ATA System: 5750 SUBJECT: WINGS - Trailing Edge and Trailing Edge Devices - Outboard Flap Support Rib Nut Fracture Inspection This revision includes all pages of the service bulletin.
COMPLIANCE INFORMATION RELATED TO THIS REVISION No more work is necessary on the airplanes changed or inspected in accordance with the original issue of this service bulletin.
REASON FOR REVISION This revision is sent to add new Top Kit information and to clarify access and repair procedures.
These sections were changed:
1. In Summary, Background, added validation information.
2. In Paragraph 1.C., Reason, added validation information.
3. In Paragraph 2.A., Material - Price and Availability, changed the ROLT for the two existing kits.
4. In Paragraph 2.A., Material - Price and Availability, added information about new oversized Top Kits.
5. In Paragraph 2.C.1., Kits/Parts, added detailed information about new oversized Top Kits.
6. In Paragraph 2.C.2., Parts and Material Supplied by Operator, changed footnotes (a) and (c).
7. In Paragraph 3.A., General Information, added an item about special tools.
8. In Paragraph 3.B., Work Instructions, clarified the Note in Part 3.
9. In Paragraph 3.B., Work Instructions, added information about optional access for Part 3.
10. In Paragraph 3.B., Work Instructions, added a task to Part 3.
11. In Paragraph 3.B., Work Instructions, clarified the Note in Part 5.
12. In Paragraph 3.B., Work Instructions, added information about optional access for Part 5.
13. In Paragraph 3.B., Work Instructions, added a task to Part 5.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 30, 2012 767-57A0131Revision 1: May 08, 2013 5 of 75
14. In Paragraph 3.B., Work Instructions, clarified the More Data column of Step 3, Substep 1 of Figures 6, 7, 8 and 9.
15. In Paragraph 3.B., Work Instructions, added a footnote (a) and applied it to Steps 2 and 3 of Figures 6, 7, 8 and 9.
16. In Paragraph 3.B., Work Instructions, added a footnote (b) and applied it to Step 3 of Figures 6, 7, 8 and 9.
17. In Appendix A, added a footnote about hole diameter differences and applied it to the Hole Diameter heading for all tables.
18. In Appendix A, changed the hole diameter range for fasteners in three of the tables.
19. Added Appendix B.
The data given in Information Notice 767-57A0131 IN 01 is included in this revision.
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.
As a part of a service bulletin validation program, this inspection and change was completed on airplane VN951 by Service Bulletin 767-57A0131 Original Issue before the release of Revision 1 of this service bulletin. The inspection and change completed on airplane VN951 by Service Bulletin 767-57A0131 Original Issue is equivalent to the release of Revision 1 of this service bulletin. Airplane VN951 has the configuration of a Group 2 airplane.
REVISION HISTORY October 30, 2012Original Issue:
May 08, 2013Revision 1:
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 30, 2012 767-57A0131Revision 1: May 08, 2013 6 of 75 BOEING SERVICE BULLETIN 767-57A0131
Commercial Airplanes 767 Service Bulletin SummaryNumber: 767-57A0131Original Issue: October 30, 2012 Revision 1: May 08, 2013 ATA System: 5750 SUBJECT: WINGS - Trailing Edge and Trailing Edge Devices - Outboard Flap Support Rib Nut Fracture Inspection
CONCURRENT REQUIREMENTS None.
BACKGROUND Accomplishment of this service bulletin will find and replace any cracked, corroded or incorrect nuts and bolts on the #1, #2, #7 and #8 outboard flap support ribs. Cracked, corroded or incorrect nuts and bolts could lead to additional nut and bolt damage in the joint which could result in loss of the outboard flap. Continued safe flight and landing could be affected after the departure of a flap during takeoff or landing.
An operator reported two fractured and corroded nuts on the outboard flap, support rib #2 on an airplane with 54,953 hours and 49,519 cycles. It was found that the incorrect nuts (QTY 8) were installed on support ribs #2 and #7. The correct nuts for this installation are BACN10HR12 nuts while NAS1804-12 nuts were found to have been installed. The torque for the BACN10HR12 nuts is 3300 to 4300 in-lbs while the torque for the NAS1804-12 nuts is 2400 to 3500 in-lbs. Overtorqued NAS1804-12 nuts are at risk of fracture. Fractured nuts may create a breach in the cap seal and allow moisture to contact the nuts, resulting in corrosion. Nut fractures could lead to additional nut or bolt fractures within that support rib. Additional fractures can cause the joint to be compromised.
This service bulletin provides instructions to inspect the nuts and bolts common to the #1, #2, #7 and #8 outboard flap support ribs and replaces any cracked, corroded or incorrect nuts and/or bolts that are found.
Boeing Fleet Team Digest (FTD) 767 FTD 57-12003 is related to this service bulletin.
Boeing Service Related Problem (SRP) 767-SRP-57-0257 is related to this service bulletin.
As a part of a service bulletin validation program, this inspection and change was completed on airplane VN951 by Service Bulletin 767-57A0131 Original Issue before the release of Revision 1 of this service bulletin. The inspection and change completed on airplane VN951 by Service Bulletin 767-57A0131 Original Issue is equivalent to the release of Revision 1 of this service bulletin. Airplane VN951 has the configuration of a Group 2 airplane.
This table is provided to operators for planning purposes only. Refer to the applicable sections for more information.
ReferenceAffectedPlanning Data Paragraph 1.A.2., Spares AffectedNoSpares Affected Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 30, 2012 767-57A0131Revision 1: May 08, 2013 7 of 75
ReferenceAffectedPlanning Data Paragraph 1.E., Compliance and Paragraph
1.F., Approval YesAD Related Paragraph 1.H., Weight and Balance ChangesNoWeight and Balance Change Paragraph 1.I., Electrical Load DataNoElectrical Load Changed Paragraph 1.K., Publications AffectedNoPublications Affected Paragraph 1.K., Publications AffectedNoAirplane Flight Operations Affected (Flight Crew Operations Manual and/or FAA Approved Airplane Flight Manual) Paragraph 2.C.1., Kits/PartsYesKits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator YesOperator Supplied Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION Group 1:
Do a Detailed Inspection of the sealant on the nuts common to Outboard Flap Support Ribs #1, #2, #7 and #8.
Remove sealant if damaged and do a Detailed Inspection of the fasteners for cracks and corrosion. If any cracked or corroded fasteners are found, replace all four fasteners on that Support Rib. Repeat the Detailed Inspection.
Install new bolts, washers and nuts.
Group 2-3:
Do a Detailed Inspection of the sealant on the nuts common to Outboard Flap Support Ribs #1, #2, #7 and #8.
Remove sealant if damaged and do a Detailed Inspection of the fasteners for cracks and corrosion. If any corroded fasteners are found, replace that fastener. If any cracked fasteners are found, replace all four fasteners on that Support Rib. Repeat the Detailed Inspection. Make sure the correct nuts are installed. If any incorrect nuts are found, replace the nut, bolt and washers.
EFFECTIVITY 767-200, -300, -300F and -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.
Refer to Paragraph 1.E., Compliance.
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are available for airplanes in warranty as of May 29, 2012. Please refer to Paragraph
2.B., Industry Support Information.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 30, 2012 767-57A0131Revision 1: May 08, 2013 8 of 75 BOEING SERVICE BULLETIN 767-57A0131
MANPOWER Refer to Paragraph 1.G., Manpower.
MATERIAL INFORMATION Boeing Supplied Kits/Parts.
Refer to Paragraph 2.A., Material - Price and Availability.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 30, 2012 767-57A0131Revision 1: May 08, 2013 9 of 75 BOEING SERVICE BULLETIN 767-57A0131
BOEING SERVICE BULLETIN 767-57A0131
REAR SPAR GROUP1:
DO A DETAILED INSPECTION OF THE SEALANT INBD
ON THE NUTS COMMON TO THE OUTBOARD FLAP SUPPORT RIBS 1, 2, 7 AND 8. REMOVE
SEALANT IF DAMAGED AND DO A DETAILED FWD
INSPECTION OF THE FASTENERS FOR CRACKS AND CORROSION. IF ANY CRACKED OR
CORRODED FASTENERS ARE FOUND, REPLACE ALL FOUR FASTENERS ON THAT SUPPORT RIB.
REPEAT THE DETAILED INSPECTION. INSTALL LEFT SIDE SHOWN, RIGHT SIDE OPPOSITE NEW BOLTS, WASHERS AND NUTS.
GROUP 2 AND 3:
DO A DETAILED INSPECTION OF THE SEALANT ON THE NUTS COMMON TO THE OUTBOARD FLAP SUPPORT RIBS 1, 2, 7 AND 8.
REMOVE SEALANT IF DAMAGED AND DO A DETAILED INSPECTION OF THE FASTENERS FOR CRACKS AND CORROSION. IF ANY CORRODED FASTENERS ARE FOUND, REPLACE THAT FASTENER.
IF ANY CRACKED FASTENERS ARE FOUND, REPLACE ALL FOUR FASTENERS ON THAT SUPPORT RIB. REPEAT THE DETAILED INSPECTION. MAKE SURE THE CORRECT NUTS ARE INSTALLED. IF 2183013
ANY INCORRECT NUTS ARE FOUND, REPLACE THE NUT, BOLT AND WASHERS.
Original Issue: October 30, 2012 Revision 1: May 08, 2013 PROPRIETARY - Copyright © Unpublished Export Controlled ECCN: 9E991 - BOEING 767-57A0131 Work - See page 1 for detalls. 10 of 75
Commercial Airplanes 767 Service Bulletin Number: 767-57A0131 Original Issue: October 30, 2012 Revision 1: May 08, 2013 ATA System: 5750 SUBJECT: WINGS - Trailing Edge and Trailing Edge Devices - Outboard Flap Support Rib Nut Fracture Inspection
1. PLANNING INFORMATION A. Effectivity
1. Airplanes This service bulletin is for the airplane(s) shown below.
Refer to Service Bulletin Index D624T001 Part 3 for Airplane Variable Number, Line Number, and Serial Number data.
DESCRIPTIONCONFIGURATIONGROUP 767-200 and-300 Airplanes that have a line number 1 through 200.
These airplanes were delivered with H-11 bolts installed in the Outboard Flap Support Ribs.
-1 767-200, -300 and -300F Airplanes that have a line number 201 through 920. These airplanes were delivered with BACB30US* bolts installed in the Outboard Flap Support Ribs.
-2 767-400ER Airplanes that have a line number 758 through 878. These airplanes were delivered with BACB30US* bolts installed in the Outboard Flap Support Ribs.
-3 Airplane Models:
767-200, 767-300, 767-300F, 767-400ER GroupVariable Number 1VA001 - VA020 1VA301 - VA315 1VA501 - VA530 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 30, 2012 767-57A0131Revision 1: May 08, 2013 11 of 75
GroupVariable Number 1VA701 - VA712 2VA713 - VA719 1VA801 - VA810 1VB001 - VB002 1VB051 - VB055 1VB101 - VB125 1VB201 - VB202 1VB251 - VB253 1VB281 - VB284 1VB301 - VB302 1VB321 - VB325 2VB326 - VB332 1VB371 - VB373 1VB401 2VB441 - VB444 1VE001 - VE003 1VE021 - VE023 1VE041 - VE043 1VE061 - VE069 1VE083 - VE084 2VE085 - VE086 1VE101 - VE103 2VE104 1VE116 - VE117 2VE118 1VE121 - VE126 1VE141 - VE145 2VE146 - VE152 2VE171 - VE172 2VF001 - VF002 2VF041 - VF042 2VF051 2VF061 - VF062 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: October 30, 2012 767-57A0131Revision 1: May 08, 2013 12 of 75 BOEING SERVICE BULLETIN 767-57A0131