2026-17-06: Turbine Engine Oil System

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: 2026-17-06 Rolls-Royce Deutschland Ltd & Co KG: Amendment 39-23449; Docket No.FAA-2026-4640; Project Identifier MCAI-2024-00073-E. (a) Effective Date This airworthiness directive (AD) is effective October 2, 2026. (b) Affected ADs None. (c) Applicability This AD applies to all Rolls-Royce Deutschland Ltd & Co KG Model Trent7000-72 and Trent7000-72C engines. (d) Subject Joint Aircraft System Component (JASC) Code 7261, Turbine Engine Oil System. (e) Unsafe Condition This AD was prompted by reports of engine in-flight shut-downs (IFSDs) due to low oil pressure indications, which were caused by the early-life failure of the internal eccentric ring/gerotor. The FAA is issuing this AD to require certain installation criteria be met for affected oil pumps prior to installation or reinstallation on an engine. The unsafe condition, if not addressed, could result in failure of the affected oil pump, and engine IFSD with consequent reduced control or loss of control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Except as specified in paragraph (h) of this AD, perform all required actions within the compliance times specified in, and in accordance with, European Union Aviation Safety Agency AD 2024-0029, dated January 29, 2024 (EASA AD 2024-0029). (h) Exceptions to EASA AD 2024-0029 (1) Where EASA AD 2024-0029 requires compliance from its effective date, this AD requires using the effective date of this AD. (2) Where paragraph (1) of EASA AD 2024-0029 states "From the effective date of this AD, it is allowed to install an affected part on any engine, or an engine equipped with an affected part on any airplane, provided that, prior to installation, it is determined that the installation criteria defined in the NMSB are met", this AD requires replacing that text with "From the effective date of this AD, do not install an affected part unless the installation criteria defined in the NMSB are met". (3) This AD does not adopt the "Remarks" paragraph of EASA AD 2024-0029. (i) 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 local Flight Standards District Office, as appropriate. If sending information directly to the manager, AIR-520 Continued Operational Safety Branch, send it to the attention of the person identified in paragraph (j) of this AD and email to: [email protected]. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (j) Additional Information For more information about this AD, contact Barbara Caufield, Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: (781) 238-7146; 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 the AD specifies otherwise. (i) European Union Aviation Safety Agency (EASA) AD 2024-0029, dated January 29, 2024. (ii) [Reserved] (3) For EASA material identified in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 000; email: [email protected]; website: easa.europa.eu. You may find this EASA AD on the EASA website at ad.easa.europa.eu. (4) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call (817) 222-5110. (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 August 19, 2026. Lona C. Saccomando, Acting Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2026-17582 Filed 8-27-26; 8:45 am]BILLING CODE 4910-13-P