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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: 2025-26-03 Rolls-Royce Deutschland Ltd & Co KG: Amendment 39-23225; Docket No. FAA-2025-5398; Project Identifier MCAI-2024-00370-E. (a) Effective Date This airworthiness directive (AD) is effective January 27, 2026. (b) Affected ADs None. (c) Applicability This AD applies to Rolls-Royce Deutschland Ltd & Co KG Model Trent 1000-A, Trent 1000-AE, Trent 1000-C, Trent 1000-CE, Trent 1000-D, Trent 1000-E, Trent 1000-G, and Trent 1000-H engines as identified in European Union Aviation Safety Agency (EASA) AD 2024-0122, dated June 28, 2024 (EASA AD 2024-0122). (d) Subject Joint Aircraft System Component (JASC) Code 7200, Engine (Turbine/Turboprop). (e) Unsafe Condition This AD was prompted by a determination made by the manufacturer that a high-pressure compressor (HPC) mini-disc anti-rotation block could possibly release into the HPC assembly stage 5 and 6 discs and cone rotor rear shaft (HPC rear drum) during an engine operation. The FAA is issuing this AD to detect and correct any missing or loose parts and foreign objects in the engine. The unsafe condition, if not addressed, could lead to failure of the HPC assembly stage 5 and 6 discs and the HPC rear drum, and consequent structural failure of the engine's critical parts. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Except as specified in paragraphs (h) and (i) of this AD, perform all required actions within the compliance times specified in, and in accordance with, EASA AD 2024-0122. (h) Exceptions to EASA AD 2024-0122 (1) Where EASA AD 2024-0122 requires compliance from its effective date, this AD requires using the effective date of this AD. (2) Where EASA AD 2024-0122 specifies to "contact Rolls-Royce Deutschland Ltd & Co KG," this AD requires replacing that text with "contact the Manager, AIR-520 Continued Operational Safety Branch, FAA; or EASA; or the Rolls-Royce Deutschland Ltd & Co KG EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature." (3) Where the material referenced in EASA AD 2024-0122 specifies "REJECT the engine", this AD requires replacing that text with "remove the engine from service". (4) This AD does not adopt the "Remarks" paragraph of EASA AD 2024-0122. (i) No Reporting Requirement Although the service material referenced in EASA AD 2024-0122 specifies to submit certain information to the manufacturer, including capturing photos and videos, this AD does not include those requirements. (j) 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 local Flight Standards District Office, as appropriate. If sending information directly to the manager of the International Validation Branch, send it to the attention of the person identified in paragraph (k) of this AD and email to: AMOC@faa.gov. (2) 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. (k) 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: barbara.caufield@faa.gov. (l) 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) European Union Aviation Safety Agency (EASA) AD 2024-0122, dated June 28, 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: ADs@easa.europa.eu; 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, 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 fr.inspection@nara.gov. Issued on January 5, 2026. Peter A. White, Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2026-00333 Filed 1-9-26; 8:45 am]BILLING CODE 4910-13-P
