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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: 2026-06-01 Leonardo S.p.a.: Amendment 39-23289; Docket No. FAA-2026-2711; Project Identifier MCAI-2024-00232-R. (a) Effective Date This airworthiness directive (AD) is effective March 31, 2026. (b) Affected ADs None. (c) Applicability This AD applies to Leonardo S.p.a. Model AB139 and AW139 helicopters having serial number 31087, 31133, 31269, 31305, 31351, 31502, 31712, 31735, 31757, 31865, 31869, 41582 and 41583, certificated in any category, modified in accordance with Supplemental Type Certificate (STC) SR00049IB. (d) Subject Joint Aircraft System Component (JASC) Code 1100, Placards and Markings. (e) Unsafe Condition This AD was prompted by the absence of instructions on the information placards located next to the rear-facing seats to lock the seat headrest in the highest position during take-off and landing. The FAA is issuing this AD to prevent the incorrect position of the seat headrest during take-off and landing. The unsafe condition, if not corrected, could result in injury to helicopter occupants during an emergency landing. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Requirements Except as specified in paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2024-0088, dated April 15, 2024; corrected May 14, 2024 (EASA AD 2024-0088). (h) Exceptions to EASA AD 2024-0088 (1) Where EASA AD 2024-0088 refers to its effective date, this AD requires using the effective date of this AD. (2) Where EASA AD 2024-0088 specifies compliance in terms of flight hours, this AD requires using hours time-in-service. (3) This AD does not adopt the "Remarks" section of EASA AD 2024-0088. (i) No Reporting Requirement Although the material referenced in EASA AD 2024-0088 specifies to submit certain information to the manufacturer, this AD does not require that action. (j) Alternative Methods of Compliance (AMOCs) (1) The Manager, International Validation 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 Frank Huynh, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (404) 983-5288; email: frank.huynh@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 2024-0088, dated April 15, 2024; corrected May 14, 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 the EASA material on the EASA website at ad.easa.europa.eu. (4) You may view this material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Parkway, Room 6N-321, Fort Worth, TX 76177. 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 March 10, 2026. Steven W. Thompson, Acting Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2026-05098 Filed 3-13-26; 8:45 am]BILLING CODE 4910-13-P