2025-21-05: Landing Gear

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: 2025-21-05 The Boeing Company: Amendment 39-23177; Docket No. FAA-2025-0739; Project Identifier AD-2025-00196-T. (a) Effective Date This airworthiness directive (AD) is effective January 2, 2026. (b) Affected ADs None. (c) Applicability This AD applies to all The Boeing Company Model 717-200 airplanes, certificated in any category, as identified in Boeing Alert Requirements Bulletin 717-32A0043 RB, dated February 12, 2025. (d) Subject Air Transport Association (ATA) of America Code 32, Landing Gear. (e) Unsafe Condition This AD was prompted by a report of a Boeing Model 717-200 operator that experienced a nose landing gear-up landing caused by the failure of the upper lock link assembly. The unsafe condition, if not addressed, could result in a failure of the nose landing gear (NLG) to fully extend during landing or cause the nose gear to remain retracted while the main gear deploys. Additionally, it could restrict ground maneuverability, increasing the risk of a runway excursion. (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 717-32A0043 RB, dated February 12, 2025, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 717-32A0043 RB, dated February 12, 2025. Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 717-32A0043, dated February 12, 2025, which is referred to in Boeing Alert Requirements Bulletin 717-32A0043 RB, dated February 12, 2025. (h) Exceptions to Requirements Bulletin Specifications (1) Where the Condition and Compliance Time columns of the tables in the "Compliance" paragraph of Boeing Alert Requirements Bulletin 717-32A0043 RB, dated February 12, 2025, refer to the original issue date of Requirements Bulletin 717-32A0043 RB, this AD requires using the effective date of this AD. (2) Where the Condition column of table 1 in the "Compliance" and "Accomplishment Instructions" paragraphs of Boeing Alert Requirements Bulletin 717-32A0043 RB, dated February 12, 2025, specifies all airplanes with an Upper Lock Link assembly that has not been overhauled, as of the Original Issue date of Requirements Bulletin 717-32A0043 RB, in accordance with OHM 32-21-2, Revision No. 63 dated July 01, 2024, or later Boeing approved revisions published on New Maintenance Performance Toolbox (nMPT), that condition does not apply to an Upper Lock Link assembly that was manufactured after December 31, 2001. (3) Where the Condition column of table 1 in the "Compliance" and "Accomplishment Instructions" paragraphs of Boeing Alert Requirements Bulletin 717-32A0043 RB, dated February 12, 2025, specifies "All airplanes with an Upper Lock Link assembly that has been overhauled", this AD requires replacing that text with "All airplanes with an Upper Lock Link assembly that was manufactured after December 31, 2001, or has been overhauled". (4) Where note (a) of table 1 in the "Compliance" and "Accomplishment Instructions" paragraphs of Boeing Alert Requirements Bulletin 717-32A0043 RB, dated February 12, 2025, defines a serviceable Upper Lock Link assembly as "one that has been overhauled", this AD requires replacing that text with "one that was manufactured after December 31, 2001, or that has been overhauled". (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: 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. (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: wayne.ha@faa.gov. (2) Material identified in this AD that is not incorporated by reference is available at the address specified in paragraph (k)(3) 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 717-32A0043 RB, dated February 12, 2025. (ii) [Reserved] (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) 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 October 17, 2025. Lona C. Saccomando, Acting Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2025-21478 Filed 11-26-25; 8:45 am]BILLING CODE 4910-13-P