2025-20-09: Engine Fuel and Control

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) 2022-22-09, Amendment 39-22224 (87 FR 72377, November 25, 2022); and b. Adding the following new AD: 2025-20-09 Airbus SAS: Amendment 39-23162; Docket No. FAA-2025-3423; Project Identifier MCAI-2025-00811-T. (a) Effective Date This airworthiness directive (AD) is effective December 10, 2025. (b) Affected ADs This AD replaces AD 2022-22-09, Amendment 39-22224 (87 FR 72377, November 25, 2022) (AD 2022-22-09). (c) Applicability This AD applies to Airbus SAS Model A350-1041 airplanes, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2025-0100, dated April 30, 2025 (EASA AD 2025-0100). (d) Subject Air Transport Association (ATA) of America Code 73, Engine Fuel and Control. (e) Unsafe Condition This AD was prompted by reports of rejected takeoffs after transient engine N1 shaft speed exceedance. The FAA is issuing this AD to address a stuck combining spill valve piston of the engine hydro-mechanical units, which could significantly reduce engine thrust, and if combined with a loss of the second engine, could possibly result in reduced control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Requirements Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2025-0100. (h) Exceptions to EASA AD 2025-0100 (1) Where EASA AD 2025-0100 refers to its effective date, this AD requires using the effective date of this AD. (2) Where paragraph (3) of EASA AD 2025-0100 refers to March 15, 2022 (the effective date of EASA AD 2022-0040, dated March 8, 2022), this AD requires using December 30, 2022 (the effective date of FAA AD 2022-22-09). (3) This AD does not adopt the "Remarks" section of EASA AD 2025-0100. (i) Additional AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): 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 Continued Operational Safety Branch, send it to the attention of the person identified in paragraph (j) of this AD and email to: [email protected] . (2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, AIR-520, Continued Operational Safety, FAA; or EASA; or Airbus SAS's EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature. (3) Required for Compliance (RC): Except as required by paragraph (i)(2) of this AD, if any material referenced in EASA AD 2025-0100 that contains paragraphs that are labeled as RC, the instructions in RC paragraphs, including subparagraphs under an RC paragraph, must be done to comply with this AD; any paragraphs, including subparagraphs under those paragraphs, that are not identified as RC are recommended. The instructions in paragraphs, including subparagraphs under those paragraphs, not identified as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC, provided the instructions identified as RC can be done and the airplane can be put back in an airworthy condition. Any substitutions or changes to instructions identified as RC require approval of an AMOC. (j) Additional Information For more information about this AD, contact Kathryn Hill, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-3626; email: [email protected]. (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) 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 this AD specifies otherwise. (3) The following material was approved for IBR on December 10, 2025. (i) European Union Aviation Safety Agency (EASA) AD 2025-0100, dated April 30, 2025. (ii) [Reserved] (4) For EASA material identified in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email [email protected]. You may find this material on the EASA website at ad.easa.europa.eu. (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 September 26, 2025. Peter A. White, Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2025-20924 Filed 11-24-25; 8:45 am]BILLING CODE 4910-13-P