AD 2010-24-12 Airworthiness Directives; The Boeing Company Model 777-200, -300, and -300ER Series Airplanes

Models named: 777-200ER, 777-200. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to The Boeing Company airplanes, certificated in any category, as identified in the applicable service information specified in Table 1 of this AD. Table 1—Service Information For Model— Boeing— 777-200, -300, and -300ER airplanes Service Bulletin 777-57A0050, Revision 2, dated May 14, 2009. 777-200 and -300 airplanes Alert Service Bulletin 777-57A0051, dated May 15, 2006. 777-200, -300, and -300ER airplanes Alert Service Bulletin 777-57A0057, Revision 1, dated August 2, 2007. 777-200, -300, and -300ER airplanes Alert Service Bulletin 777-57A0059, dated October 30, 2008. Note 1: Although Boeing Service Bulletin 777-57A0050, Revision 2, dated May 14, 2009, refers to “Model 777-200ER” airplanes, this is a European designation that does not apply to airplanes of U.S. registry. Therefore, the applicability of this AD will not specify Model 777-200ER airplanes. However, U.S. operators should consider any reference to Model 777-200ER airplanes in Boeing Service Bulletin 777-57A0050, Revision 2, as applicable to Model 777-200 airplanes as designated by the type certificate data sheet.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Corrective Actions (Installing Teflon Sleeving, Cap Sealing, One-Time Inspection) (g) Within 60 months after the effective date of this AD, do the applicable actions specified in paragraph (g)(1), (g)(2), (g)(3), or (g)(4) of this AD. (1) For airplanes identified in Boeing Service Bulletin 777-57A0050, Revision 2, dated May 14, 2009: Install Teflon sleeving under the clamps of certain wire bundles routed along the fuel tank boundary structure and cap seal certain penetrating fasteners of the fuel tanks, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 777-57A0050, Revision 2, dated May 14, 2009. (2) For airplanes identified in Boeing Alert Service Bulletin 777-57A0051, dated May 15, 2006: Cap seal certain penetrating fasteners of the fuel tanks, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 777-57A0051, dated May 15, 2006. (3) For airplanes identified in Boeing Alert Service Bulletin 777-57A0057, Revision 1, dated August 2, 2007: Do a general visual inspection to determine if certain fasteners are cap sealed and do all applicable corrective actions, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 777-57A0057, Revision 1, dated August 2, 2007. Do all applicable corrective actions before further flight. (4) For airplanes identified in Boeing Alert Service Bulletin 777-57A0059, dated October 30, 2008: Cap seal the fasteners in the center fuel tanks that were not sealed during production, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 777-57A0059, dated October 30, 2008. Credit for Actions Done Using Previous Issues of the Service Bulletins (h) Actions done before the effective date of this AD in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 777-57A0050, dated January 26, 2006; or Revision 1, dated August 2, 2007; are acceptable for compliance with the corresponding actions required by paragraph (g)(1) of this AD, provided that the applicable additional work specified in Boeing Service Bulletin 777-57A0050, Revision 2, dated May 14, 2009, is done within the compliance time specified in paragraph (g) of this AD. The additional work must be done in accordance with Boeing Service Bulletin 777-57A0050, Revision 2, dated May 14, 2009. (i) Actions done before the effective date of this AD in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 777-57A0057, dated August 7, 2006, are acceptable for compliance with the actions required by paragraph (g)(3) of this AD. Alternative Methods of Compliance (AMOCs) (j)(1) The Manager, Seattle Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to Attn: Margaret Langsted, Aerospace Engineer, Propulsion Branch, ANM-140S, FAA, Seattle ACO, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 917-6500; fax (425) 917-6590. Or, e-mail information to 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov. (2) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Before using any approved AMOC on any airplane to which the AMOC applies, notify your principal maintenance inspector (PMI) or principal avionics inspector (PAI), as appropriate, or lacking a principal inspector, your local Flight Standards District Office. The AMOC approval letter must specifically reference this AD. (3) An AMOC that provides an acceptable level of safety may be used for any repair required by this AD if it is approved by the Boeing Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO, to make those findings. For a repair method to be approved, the repair must meet the certification basis of the airplane and the approval must specifically refer to this AD. Material Incorporated by Reference (k) You must use the applicable service information contained in Table 2 of this AD to do the actions required by this AD, unless the AD specifies otherwise. Table 2—Material Incorporated by Reference Document— Revision— Date— Boeing Alert Service Bulletin 777-57A0051 Original May 15, 2006 Boeing Alert Service Bulletin 777-57A0057 1 August 2, 2007 Boeing Alert Service Bulletin 777-57A0059 Original October 30, 2008 Boeing Service Bulletin 777-57A0050 2 May 14, 2009 (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; telephone 206-544-5000, extension 1, fax 206-766-5680; e-mail me.boecom@boeing.com; Internet https://www.myboeingfleet.com. (3) You may review copies of the service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on the availability of this material at the FAA, call 425-227-1221. (4) You may also review copies of the service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. Issued in Renton, Washington, on November 18, 2010. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2010-30606 Filed 12-15-10; 8:45 am] BILLING CODE 4910-13-P

This AD results from fuel system reviews conducted by the manufacturer. The Federal Aviation Administration is issuing this AD to prevent electrical arcing on the fuel tank boundary structure or inside the main and center fuel tanks, which could result in a fire or explosion.