2025-11-01: Fuselage

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: 2025-11-01 The Boeing Company: Amendment 39-23047; Docket No. FAA-2025-0012; Project Identifier AD-2024-00219-T. (a) Effective Date This airworthiness directive (AD) is effective July 8, 2025. (b) Affected ADs None. (c) Applicability This AD applies to The Boeing Company Model 757-200, -200CB, and -300 series airplanes, certificated in any category, as identified in Boeing Alert Requirements Bulletin 757-53A0123 RB, dated March 13, 2024. (d) Subject Air Transport Association (ATA) of America Code 53, Fuselage. (e) Unsafe Condition This AD was prompted by a report of cracking found in new locations at body station (STA) 1640 during frame segment replacement repairs, including in the web at the K-hole between stringers S-9 and S-10, in the outer chord above the lower hinge intercostal, and in the inner chord and web between stringers S-10 and S-19. The FAA is issuing this AD to address undetected cracks in the fuselage frame at STA 1640, which could affect a principal structural element's ability to sustain limit load. The unsafe condition, if not addressed, could result in reduced structural integrity of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) For all airplanes except those identified in paragraph (g)(2) of this AD: Except as specified by paragraph (h) of this AD: At the applicable times specified in the "Compliance" paragraph of Boeing Alert Requirements Bulletin 757-53A0123 RB, dated March 13, 2024, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 757-53A0123 RB, dated March 13, 2024. Note 1 to paragraph (g)(1): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 757-53A0123, dated March 13, 2024, which is referred to in Boeing Alert Requirements Bulletin 757-53A0123 RB, dated March 13, 2024. (2) For airplanes identified in Aviation Partners Boeing Alert Service Bulletin AP757-53-006, dated May 7, 2024: Except as specified in paragraph (h) of this AD, at the applicable times specified in paragraph 1.E., "Compliance," of Aviation Partners Boeing Alert Service Bulletin AP757-53-006, dated May 7, 2024, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 757-53A0123 RB, dated March 13, 2024. (h) Exceptions to Requirements Bulletin Specifications (1) Where the Compliance Time columns of the tables in the "Compliance" paragraph of Boeing Alert Requirements Bulletin 757-53A0123 RB, dated March 13, 2024, refer to the original issue date of Requirements Bulletin 757-53A0123 RB, this AD requires using the effective date of this AD. (2) Where Boeing Alert Requirements Bulletin 757-53A0123 RB, dated March 13, 2024, specifies contacting Boeing for repair instructions or for alternative inspections: This AD requires doing the repair, or doing the alternative inspections and applicable on-condition actions, using a method approved in accordance with the procedures specified in paragraph (i) of this AD. (3) Where the Compliance Time columns of the tables in the "Compliance" paragraph of Aviation Partners Boeing Alert Service Bulletin AP757-53-006, dated May 7, 2024, refer to the original issue date of Requirements Bulletin 757-53A0123 RB, this AD requires using the effective date of this AD. (4) Where Aviation Partners Boeing Alert Service Bulletin AP757-53-006, dated May 7, 2024, specifies contacting Boeing for repair instructions or for alternative inspections: This AD requires doing the repair, or doing the alternative inspections and applicable on-condition actions, using a method approved in accordance with the procedures specified in paragraph (i) of this AD. (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)(1) of this AD. Information may be emailed to: [email protected]. (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 (1) For more information about this AD, contact Wayne Ha, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 562-627-5238; email: [email protected]. (2) Material identified in this AD that is not incorporated by reference is available at the address specified in paragraph (k)(3) of this AD. (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 Alert Requirements Bulletin 757-53A0123 RB, dated March 13, 2024. (ii) Aviation Partners Boeing Alert Service Bulletin AP757-53-006, dated May 7, 2024. (3) For the 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) For the Aviation Partners Boeing material identified in this AD, contact Aviation Partners Boeing, 555 Andover Park West, Suite 200, Tukwila, WA 98188; telephone 206-830-7699; fax 206-767-0535; email leng@aviation partners.com ; website aviationpartnersboeing.com . (5) 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. (6) 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 [email protected]. Issued on May 19, 2025. Peter A. White, Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2025-10060 Filed 6-2-25; 8:45 am]BILLING CODE 4910-13-P