2010-06-10: Fuel quantity indicating system (FQIS)

2010-06-10 The Boeing Company: Amendment 39-16234. Docket No. FAA- 2008-0978; Directorate Identifier 2008-NM-014-AD. \n\nEffective Date \n\n\t(a) This airworthiness directive (AD) is effective May 3, 2010. \n\nAffected ADs \n\n\t(b) None. \n\nApplicability \n\n\t(c) This AD applies to The Boeing Company Model 767-200, -300, and -300F series airplanes, certificated in any category; as identified in Boeing Service Bulletin 767-28A0094, Revision 1, dated April 23, 2009. \n\n\tNote 1: This AD requires revisions to certain operator maintenance documents to include new inspections. Compliance with these inspections is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by these inspections, the operator may not be able to accomplish the inspections described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance (AMOC) according to paragraph (k) of this AD. The request should include a description of changes to the required inspections that will ensure the continued operational safety of the airplane. \n\nUnsafe Condition \n\n\t(d) This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent the center tank fuel densitometer from overheating and becoming a potential ignition source inside the center fuel tank, which, in combination with flammable fuel vapors, could result in a center fuel tank explosion and consequent loss of the airplane. \n\nCompliance \n\n\t(e) Comply with this AD within the compliance times specified, unless already done. \n\nInstall Support Hardware and Modify Wiring of the Fuel Quantity Indicating System (FQIS) Densitometer; Replace Hot Short Protector (HSP) \n\n\t(f) Within 60 months after the effective date of this AD, do the actions specified in paragraphs (f)(1) and (f)(2) of this AD, as applicable, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 767-28A0094, Revision 1, dated April 23, 2009. \n\t(1) For Group 1 airplanes, Group 2 airplanes, Configuration 1, and Group 3 airplanes: Install support hardware and modify the interfacing wiring of the FQIS densitometer. \n\t(2) For Group 4 airplanes: Replace the existing HSP with a new HSP. \n\n\tNote 2: In Figure 9, Step 8, of the Accomplishment Instructions of Boeing Service Bulletin 767-28A0094, Revision 1, dated April 23, 2009, the ground identification number is identified as GD19393S; however, the correct ground identification number is GD10393S. \n\nCredit for Service Information Accomplished Previously \n\n\t(g) Actions done before the effective date of this AD in accordance with Boeing Alert Service Bulletin 767-28A0094, dated November 20, 2007, are acceptable for compliance with the requirements of paragraph (f) of this AD. \n\nAirworthiness Limitations (AWL) Revision \n\n\t(h) Concurrently with accomplishing the actions required by paragraph (f) ofthis AD, revise the AWL section of the Instructions for Continued Airworthiness by incorporating AWL No. 28-AWL-22 into the Boeing 767 Maintenance Planning Data (MPD) Document, D622T001-9, Section 9, Revision May 2009. \n\nNo Alternative Critical Design Configuration Control Limitations (CDCCL) \n\n\t(i) After the actions specified in paragraph (h) of this AD have been accomplished, no alternative CDCCL for AWL No. 28-AWL-22 may be used, unless the CDCCL is approved as an AMOC in accordance with the procedures specified in paragraph (k) of this AD. \n\nTerminating Action for AWL Revision \n\n\t(j) Incorporating AWL No. 28-AWL-22 into the AWL section of the Instructions for Continued Airworthiness in accordance with paragraph (g)(2) of AD 2008-11-01, amendment 39-15523, terminates the action required by paragraph (h) of this AD. \n\nAlternative Methods of Compliance (AMOCs) \n\n\t(k)(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: Georgios Roussos, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, 1601 Lind Avenue, SW., Renton, Washington 98057- 3356; telephone (425) 917-6482; fax (425) 917-6590. Or, e-mail information to [email protected]. \n\t(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. \n\nMaterial Incorporated by Reference \n\n\t(l) You must use Boeing Service Bulletin 767-28A0094, Revision 1, dated April 23, 2009; and AWL No. 28-AWL-22 of the Boeing 767 Maintenance Planning Data (MPD) Document, D622T001-9, Section 9, Revision May 2009; as applicable; to do the actions required by this AD, unless the AD specifies otherwise. The Boeing 767 MPD Document, D622T001-9, Section 9, Revision May 2009, contains the following effective pages: \n\n\tList of Effective Pages \n\n\nPage title/description \nPage No(s). \nRevision \nDate shown on page(s) \n\n9.0-1 \nMay 2009 \nMay 2009. \nTitle Page, MPD Section 9 \n9.0-2 \nNone Shown * \nNone Shown.* \n\n9.0-3 \nMay 2009 \nMay 2009. \nTable of Contents, MPD Section 9 \n9.0-4 \nNone Shown * \nNone Shown.* \nRevisions, MPD Section 9 \n9.0-5-9.0-14 \nMay 2009 \nMay 2009. \n\n9.0-15 \nMay 2009 \nMay 2009. \nList of Effective Pages, MPD Section 9 \n9.0-16 \nNone Shown * \nNone Shown.* \nAWL No. 28-AWL-22 \n9.0-85 \nApril 2008 \nApril 2008. \n------------------------------------------------------------------------------------------------------------ \n* The dates shown on the pages of Boeing 767 MPD Document D622T001-9, Revision May 2009, arethe revision level of those pages. Pages 9.0-2, 9.0-4, and 9.0-16 of Boeing 767 MPD Document D622T001-9, Revision May 2009, are \tintentionally not dated. \n\n\t(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. \n\t(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 [email protected]; Internet https://www.myboeingfleet.com. \n\t(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 or 425-227-1152. \n\t(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.