AD 2011-09-05 Airworthiness Directives; The Boeing Company Model 777-200, -300, and -300ER Series Airplanes

Models named: 777-200, -300, -300ER series. Read the applicability below — it usually turns on serial or part numbers too.

The Boeing Company Model 777-200, -300, and -300ER series airplanes; certificated in any category; as identified in Boeing Service Bulletin 777-28A0047, Revision 5, dated September 20, 2010.

Comply with this AD within the compliance times specified, unless already done. Installation (g) For airplanes in Groups 1 and 2, Configuration 2, as identified in Boeing Service Bulletin 777-28A0047, Revision 5, dated September 20, 2010: Within 36 months after the effective date of this AD, install a new P301 panel on the left side of the airplane, install a new P302 panel on the right side of the airplane, and change the wiring, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 777-28A0047, Revision 5, dated September 20, 2010, except as required by paragraphs (m) and (n) of this AD. (h) For airplanes in Groups 1 and 2, Configuration 1, as identified in Boeing Service Bulletin 777-28A0047, Revision 5, dated September 20, 2010: Within 36 months after the effective date of this AD, perform bonding resistance measurements and rework the airplane installation as applicable, depending on airplane configuration, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 777-28A0047, Revision 5, dated September 20, 2010. Concurrent Requirements (i) Prior to or concurrently with accomplishing the requirements of paragraph (g) of this AD, do the actions specified in paragraphs (i)(1), (i)(2), (i)(3), and (i)(4) of this AD. (1) Install new software in the electrical load management system (ELMS) electronics units in the P110, P210, and P310 power management panels, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 777-28A0040, Revision 1, dated March 18, 2010. (2) Install airplane information management system 2 (AIMS-2) software in the AIMS-2 hardware, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 777-31-0097, Revision 3, dated February 22, 2007. (3) Modify the P110 left power management panel by incorporating wiring changes, in accordance with the Accomplishment Instructions of GE Aviation Service Bulletin 5000ELM-28-456, Revision 1, dated January 7, 2010, except as provided by paragraphs (m) and (n) of this AD. (4) Modify the P210 right power management panel by incorporating wiring changes, in accordance with the Accomplishment Instructions of GE Aviation Service Bulletin 6000ELM-28-457, Revision 1, dated January 7, 2010, except as provided by paragraphs (m) and (n) of this AD. Credit for Actions Accomplished in Accordance With Previous Service Information (j) Installations done before the effective date of this AD in accordance with Boeing Alert Service Bulletin 777-28A0040, dated April 13, 2007, are acceptable for compliance with the requirements of paragraph (i)(1) of this AD. (k) Installations done before the effective date of this AD in accordance with Boeing Service Bulletin 777-28A0047, Revision 3, dated June 11, 2009; or Revision 4, dated May 20, 2010; are acceptable for compliance with the requirements of paragraphs (g) and (h) of this AD. (l) Installations done before the effective date of this AD in accordance with Boeing Special Attention Service Bulletin 777-31-0097, dated March 30, 2006; Revision 1, dated August 10, 2006; or Revision 2, dated October 26, 2006; are acceptable for compliance with the requirements of paragraph (i)(2) of this AD. Optional Methods of Compliance With Certain Actions (m) Where paragraph 2.A.(16) and Figure 8 of GE Aviation Service Bulletins 5000ELM-28-456 and 6000ELM-28-457, both Revision 1, both dated January 7, 2010, identify the installation of conical springs for the relay to relay base fixing, installation of spring washers is an acceptable method of compliance when they are part of the existing relay assembly. (n) Where paragraphs 2.A.(24) and 2.A.(25) of GE Aviation Service Bulletins 5000ELM-28-456 and 6000ELM-28-457, both Revision 1, both dated January 7, 2010, specify the installation of a label to identify work carried out and to identify the appropriate service bulletin, an acceptable method of compliance is to use a suitable method to indelibly mark the appropriate service bulletin number on the reworked panel. Boeing Standard BAC5307 may be used as an additional source of guidance for part marking. Alternative Methods of Compliance (AMOCs) (o)(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. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ACO, send it to the attention of the person identified in the Related Information section of this AD. Information may be e-mailed to: 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. Related Information (p) For more information about this AD, contact Georgios Roussos, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; phone: 425-917-6482; fax: 425-917-6590; e-mail: Georgios.Roussos@faa.gov. Material Incorporated by Reference (q) You must use the applicable service information contained in table 1 of this AD to do the actions required by this AD, unless the AD specifies otherwise. Table 1—All Material Incorporated by Reference Document Revision Date Boeing Service Bulletin 777-28A0047 5 September 20, 2010. Boeing Service Bulletin 777-28A0040 1 March 18, 2010. Boeing Special Attention Service Bulletin 777-31-0097 3 February 22, 2007. GE Aviation Service Bulletin 5000ELM-28-456 1 January 7, 2010. GE Aviation Service Bulletin 6000ELM-28-457 1 January 7, 2010. (1) The Director of the Federal Register approved the incorporation by reference of the service information contained in Table 1 of this AD under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For Boeing 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. For GE Aviation service information identified in this AD, contact GE Aviation, Customer Services—Clearwater, P.O. Box 9013, Clearwater, Florida 33758; telephone 727-539-1631; fax 727-539-0680; e-mail cs.support@ge.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 an NARA facility, 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 April 12, 2011. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2011-9283 Filed 4-20-11; 8:45 am] BILLING CODE 4910-13-P

This AD was prompted by results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent potential ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.