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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: a. Removing Airworthiness Directive 2020-06-16, Amendment 39-19885 (85 FR 17738, March 31, 2020); and b. Adding the following new airworthiness directive: 2026-18-04 Rolls-Royce Deutschland Ltd & Co KG: Amendment 39-23459; Docket No. FAA-2026-2287; Project Identifier MCAI-2025-01208-E. (a) Effective Date This airworthiness directive (AD) is effective October 16, 2026. (b) Affected ADs This AD replaces AD 2020-06-16, Amendment 39-19885 (85 FR 17738, March 31, 2020). (c) Applicability This AD applies to all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model RB211 Trent 768-60, 772-60, and 772B-60 engines, with a low-pressure compressor (LPC) blade having part number (P/N) FK23411, FK25441, FK25968, FW11901, FW15393, FW23643, FW23741, FW23744, KH23403, KH23404, or LV11570, installed. (d) Subject Joint Aircraft System Component (JASC) Code 7230, Turbine Engine Compressor Section. (e) Unsafe Condition This AD was prompted by reports of LPC partial airfoil blade release events. The FAA is issuing this AD to prevent LPC blade airfoil separation. The unsafe condition, if not addressed, could result in engine nose cowl loss, under cowl fires, forward projection of secondary debris, damage to the engine, damage to the airplane, and injury to persons on the ground. (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, European Union Aviation Safety Agency (EASA) AD 2025-0144, dated July 9, 2025 (EASA AD 2025-0144). (h) Exceptions to EASA AD 2025-0144 (1) Where EASA AD 2025-0144 refers to its effective date, this AD requires using the effective date of this AD. (2) Where the Groups definition in EASA AD 2025-0144 specifies "NMSB", this AD requires replacing that text with "RR Alert NMSB RB.211-72-AL191, Initial Issue, dated May 30, 2025". (3) Where the definition of an affected part in EASA AD 2025-0144 specifies "Part Number (P/N) FK23411, FW23643, FW23741, FW23744, KH23403, KH23404 or P/N LV11570", this AD requires replacing that text with "P/N FK23411, FW23643, FW23741, FW23744, FK25441, FK25968, FW11901, FW15393, KH23403, KH23404, or LV11570, installed". (4) This AD does not adopt the "Remarks" paragraph of EASA AD 2025-0144. (i) No Reporting Requirement Although the material referenced in EASA AD 2025-0144 specifies to submit certain information to the manufacturer, this AD does not include that requirement. (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 AIR-520 Continued Operational Safety 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 Alexis Whitaker, Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: (516) 228-7309; email: alexis.j.whitaker@faa.gov . (l) 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 2025-0144, dated July 9, 2025. (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 material 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 fr.inspection@nara.gov . Issued on August 28, 2026. Brian Knaup, Acting Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2026-18559 Filed 9-10-26; 8:45 am]BILLING CODE 4910-13-P
