2024-07-05: 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: 2024-07-05 The Boeing Company: Amendment 39-22726; Docket No. FAA-2023-1214; Project Identifier AD-2023-00181-T. (a) Effective Date This airworthiness directive (AD) is effective June 5, 2024. (b) Affected ADs None. (c) Applicability This AD applies to The Boeing Company Model 757-200, 757-200CB, and 757-300 airplanes, certificated in any category, as identified in Boeing Alert Requirements Bulletin 757-53A0120 RB, dated January 17, 2022. (d) Subject Air Transport Association (ATA) of America Code 53, Fuselage. (e) Unsafe Condition This AD was prompted by cracks on both sides of the airplane in the station (STA) 1640 frame web between stringer S-14 and S-15. The FAA is issuing this AD to address liner holes that could create a stress concentration around the holes and lead to cracks. The unsafe condition, if not addressed, could result in the inability of a structural element to sustain limit load and could adversely affect the structural integrity 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: At the applicable times specified in the "Compliance" paragraph of Boeing Alert Requirements Bulletin 757-53A0120 RB, dated January 17, 2022, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 757-53A0120 RB, dated January 17, 2022. Actions identified as terminating action in Boeing Alert Requirements Bulletin 757-53A0120 RB, dated January 17, 2022, terminate the applicable required actions of this AD, provided the terminating action is done in accordance with the Accomplishment Instructions of Boeing Alert Requirements Bulletin 757-53A0120 RB, dated January 17, 2022. Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 757-53A0120, dated January 17, 2022, which is referred to in Boeing Alert Requirements Bulletin 757-53A0120 RB, dated January 17, 2022. (h) Exceptions to Service Information Specifications (1) Where the Compliance Time columns of the tables in the "Compliance" paragraph of Boeing Alert Requirements Bulletin 757-53A0120 RB, dated January 17, 2022, refer to the original issue date of Requirements Bulletin 757-53A0120 RB, this AD requires using the effective date of this AD. (2) Where Boeing Alert Requirements Bulletin 757-53A0120 RB, dated January 17, 2022, specifies contacting Boeing for repair instructions: This AD requires doing the repair before further flight using a method approved in accordance with the procedures specified in paragraph (i) of this AD. (3) For airplanes that have been modified in accordance with supplemental type certificate (STC) ST01518SE, with or without blended or scimitar blended winglets installed: This AD requires all compliance times and repetitive intervals required by this AD, as specified in the "Compliance" paragraph of Boeing Alert Requirements Bulletin 757-53A0120 RB, dated January 17, 2022, to be divided by a factor of 2. (4) For airplanes identified as Group 1 in Boeing Alert Requirements Bulletin 757-53A0120 RB, dated January 17, 2022, that have been converted from a passenger to freighter configuration with VT Mobile Aerospace Engineering (MAE) STC ST03562AT: This AD requires compliance with all applicable actions and compliance times specified for Group 3 airplanes. (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 Street, Des Moines, WA 98198; phone: 562-627-5238; email: [email protected]. (2) Service information 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 (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) Boeing Alert Requirements Bulletin 757-53A0120 RB, dated January 17, 2022. (ii) [Reserved] (3) For Boeing material, 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 [email protected] . Issued on March 29, 2024. Victor Wicklund, Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2024-09338 Filed 4-30-24; 8:45 am]BILLING CODE 4910-13-P