2026-15-02: Fuel

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: a. Removing Airworthiness Directive (AD) 2024-19-14, Amendment 39-22856 (89 FR 80077, October 2, 2024); and b. Adding the following new AD: 2026-15-02 The Boeing Company: Amendment 39-23414; Docket No. FAA-2025-2546; Project Identifier AD-2025-01060-T. (a) Effective Date This airworthiness directive (AD) is effective September 1, 2026. (b) Affected ADs This AD replaces AD 2024-19-14, Amendment 39-22856 (89 FR 80077, October 2, 2024) (AD 2024-19-14). (c) Applicability This AD applies to all The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes, certificated in any category. (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 (1) Except as specified by paragraph (h) of this AD: At the applicable times specified in the "Compliance" paragraph of Boeing Alert Requirements Bulletin 777-28A0097 RB, dated August 14, 2025, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 777-28A0097 RB, dated August 14, 2025. Note 1 to paragraph (g)(1): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 777-28A0097, dated August 14, 2025, which is referred to in Boeing Alert Requirements Bulletin 777-28A0097 RB, dated August 14, 2025. (2) Except as specified by paragraph (h) of this AD: At the applicable times specified in the "Compliance" paragraph of Boeing Alert Requirements Bulletin 777-28A0098 RB, dated August 15, 2025, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 777-28A0098 RB, dated August 15, 2025. Note 2 to paragraph (g)(2): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 777-28A0098, dated August 15, 2025, which is referred to in Boeing Alert Requirements Bulletin 777-28A0098 RB, dated August 15, 2025. (h) Exceptions to Requirements Bulletin Specifications (1) Where the Compliance Time columns of Tables 1 and 2 in the "Compliance" paragraph of Boeing Alert Requirements Bulletin 777-28A0097, dated August 14, 2025, refer to the original issue date of Requirements Bulletin 777-28A0097, this AD requires using October 17, 2024 (the effective date of AD 2024-19-14). (2) Where the Compliance Time columns of Tables 3 and 4 in the "Compliance" paragraph of Boeing Alert Requirements Bulletin 777-28A0097, dated August 14, 2025, refer to the original issue date of Requirements Bulletin 777-28A0097, this AD requires using the effective date of this AD. (3) Where the Compliance Time columns of the tables in the "Compliance" paragraph of Boeing Alert Requirements Bulletin 777-28A0098, dated August 15, 2025, refer to the original issue date of Requirements Bulletin 777-28A0098, dated August 15, 2025, this AD requires using the effective date of this AD. (i) Critical Design Configuration Control Limitations (CDCCLs) Within 60 days after the effective date of this AD, revise the existing maintenance or inspection program, as applicable, to incorporate the information specified in Figure 1 and Figure 2 to paragraph (i) of this AD. BILLING CODE 4910-13-P ER28JY26.330 ER28JY26.331 ER28JY26.332 (j) 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 (k)(1) of this AD. Information may be emailed to: AMOC@faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (2) 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. (3) AMOCs approved for AD 2024-19-14 are not approved as AMOCs for the corresponding provisions of Boeing Alert Requirements Bulletin 777-28A0097, dated August 14, 2025, that are required by paragraph (g) of this AD. (k) Additional Information (1) 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. (2) Material identified in this AD that is not incorporated by reference is available at the address specified in paragraph (l)(3) of this AD. (l) 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 Alert Requirements Bulletin 777-28A0097, dated August 14, 2025. (ii) Boeing Alert Requirements Bulletin 777-28A0098, dated August 15, 2025. (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 July 15, 2026. Lona C. Saccomando, Acting Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2026-15239 Filed 7-27-26; 8:45 am]BILLING CODE 4910-13-P