### Commercial **Airplanes** 

# 767 Service Bulletin
**Number: 767-57A0126** Original Issue: August 12, 2011 Revision 1: November 09, 2011 ATA System: 5710 5350 **SUBJECT:** Wing - Center Wing - Lower Underwing Longeron Fitting at FWD Intersection of Fuselage and Wing Skin - Inspection and Replacement Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 730-774). An export license may be required before it is used for development, production or use by foreign persons from specific countries. The controller of this data has the individual responsibility to abide by all export laws.9E991 ECCN: 

## BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2011 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter. Boeing also claims copyright in this document as a compilation and/or collective work. This document includes proprietary information owned by The Boeing Company and/or one or more third parties. Treatment of the document and the information it contains is governed by contract with Boeing. For more information, contact The Boeing Company, P.O. Box 3707, Seattle, Washington 98124. Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner, BBJ, DC-8, DC-9, DC-10, KC-10, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, Poseidon and the Boeing livery are all trademarks owned by The Boeing Company; and no trademark license is granted in connection with this document unless provided in writing by Boeing.

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 12, 2011 767-57A0126 Revision 1: November 09, 2011 1 of 4 2.0BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 12, 2011 767-57A0126 Revision 1: November 09, 2011 2 of 4 **BOEING SERVICE BULLETIN 767-57A0126**

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### Commercial **Airplanes** 

# 767 Service Bulletin

**Short Form Revision Number: 767-57A0126**  Original Issue: August 12, 2011 Revision 1: November 09, 2011 ATA System: 5710 5350 **SUBJECT:** Wing - Center Wing - Lower Underwing Longeron Fitting at FWD Intersection of Fuselage and Wing Skin - Inspection and Replacement Revision 1 is sent to change information. Only the changed information is described below. The Original Issue and Revision 1 are necessary to do the service bulletin. **COMPLIANCE INFORMATION RELATED TO THIS REVISION** No work is necessary on the airplane(s) changed in accordance with the Original Issue of this service bulletin. **REASON FOR REVISION** This revision is sent to change the CONCAVE SELF-ALIGN WASHER part number BACW10CA10CS to BACW10CA10CCS in Figure 7 Step 11 and in Figure 8 Step 11. **REVISION HISTORY** August 12, 2011 Original Issue: November 09, 2011 Revision 1:
**EFFECTIVITY** 767-200/ -300/ -300F/ -400ER Airplane. Refer to Paragraph 1.A.1., Airplanes, in the Original Issue of this service bulletin for the list of affected airplane(s). **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. 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. **EXISTING INFORMATION** The following is the existing information in the service bulletin:

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 12, 2011 767-57A0126 Revision 1: November 09, 2011 3 of 41. In Figure 7, Step 11, the part number reads BACW10CA10CS. 2. In Figure 8, Step 11, the part number reads BACW10CA10CS. **CHANGED INFORMATION** The following is the changed information in the service bulletin: 1. In Figure 7, Step 11, the part number must read BACW10CA10CCS. 2. In Figure 8, Step 11, the part number must read BACW10CA10CCS.

BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. Original Issue: August 12, 2011 767-57A0126 Revision 1: November 09, 2011 4 of 4 **BOEING SERVICE BULLETIN 767-57A0126**