2024-19-14: Fuel

PART 39-AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2024-19-14 The Boeing Company: Amendment 39-22856; Docket No. FAA-2024-2317; Project Identifier AD-2024-00468-T. (a) Effective Date This airworthiness directive (AD) is effective October 17, 2024. (b) Affected ADs None. (c) Applicability This AD applies to The Boeing Company Model 777-200, 777-200LR, 777-300ER, and 777F series airplanes, certificated in any category, with General Electric Company (GE) GE90-76B, GE90-85B, GE90-90B, GE90-94B, GE90-110B1, and GE90-115B model turbofan engines installed. (d) Subject Air Transport Association (ATA) of America Code 28, Fuel. (e) Unsafe Condition This AD was prompted by a report of potential latent failures of the lightning protection features for the engine fuel feed system. The FAA is issuing this AD to address such latent failures. A lightning strike to an engine nacelle combined with latent failures of the lightning protection features for the engine fuel feed system, if not addressed, could result in the potential for 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. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Except as specified by paragraph (h) of this AD: Within 90 days after the effective date of this AD, or within 1 year after the date of issuance of the original airworthiness certificate or original export certificate of airworthiness, whichever comes later, do detailed inspections and measure the bond resistance of the bonding jumpers on the fuel feed tube installed immediately forward of the wing front spar at each of the two engine locations, and do all applicable corrective actions, in accordance with the Part 2 of the Work Instructions of Boeing Multi Operator Message MOM-MOM-24-0463-01B, dated September 4, 2024. All applicable corrective actions must be done before further flight. Repeat the inspections and bonding resistance measurement thereafter at intervals not to exceed 1 year. (h) Exception to Service Information Specifications (1) Where Boeing Multi Operator Message MOM-MOM-24-0463-01B, dated September 4, 2024, specifies contacting Boeing for instructions if a bonding resistance measurement continues to exceed specified limits after multiple failed corrective action attempts, this AD requires doing a repair before further flight using a method approved in accordance with the procedures specified in paragraph (i) of this AD. (2) Boeing Multi Operator Message MOM-MOM-24-0463-01B, dated September 4, 2024, refers to Aircraft Illustrated Parts Catalogue (AIPC) AIPC 28-11-51-01 in several places; however, the correct AIPC reference is AIPC 28-11-51-02. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, AIR-520, Continued Operational Safety Branch, 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 responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (j) of this AD. Information may be emailed to AMOC@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (3) An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by The Boeing Company Organization Designation Authorization (ODA) that has been authorized by the Manager, AIR-520, Continued Operational Safety Branch, FAA, to make those findings. To be approved, the repair method, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD. (j) Related Information For more information about this AD, contact Samuel Dorsey, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-3415; email: Samuel.J.Dorsey@faa.gov. (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference of the material listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this material as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) Boeing Multi Operator Message MOM-MOM-24-0463-01B, dated September 4, 2024. (ii) [Reserved] (3) For Boeing material identified in this AD, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600; telephone 562-797-1717; website myboeingfleet.com . (4) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. (5) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email fr.inspection@nara.gov . Issued on September 20, 2024. Peter A. White, Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2024-22802 Filed 9-30-24; 11:15 am]BILLING CODE 4910-13-P