2025-19-10: Engine Air Intake 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: 2025-19-10 Leonardo S.p.A.: Amendment 39-23150; Docket No. FAA-2025-2550; Project Identifier MCAI-2025-01211-R. (a) Effective Date This airworthiness directive (AD) is effective October 9, 2025. (b) Affected ADs None. (c) Applicability This AD applies to Leonardo S.p.A. Model AW189 helicopters, certificated in any category. (d) Subject Joint Aircraft System Component (JASC) Code 7160, Engine Air Intake System. (e) Unsafe Condition This AD was prompted by a report of a fire occurring during the operational check of the engine anti-icing system. The FAA is issuing this AD to prevent the occurrence of a fire during the operation of the air intakes ice protection system. The unsafe condition, if not addressed, could result in an uncontrolled fire and possible loss of the helicopter. (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 European Union Aviation Safety Agency AD 2025-0147, dated July 11, 2025 (EASA AD 2025-0147). (h) Exceptions to EASA AD 2025-0147 (1) Where EASA AD 2025-0147 refers to its effective date, this AD requires using the effective date of this AD. (2) Where EASA AD 2025-0147 refers to flight hours, this AD requires using hours time-in-service. (3) Where EASA AD 2025-0147 refers to isolation resistance check or isolation check, this AD requires using isolation resistance measurement. (4) Where paragraph (4) of EASA AD 2025-0147 states "any discrepancy", this AD requires replacing that text with "any isolation resistance that is less than 10 M? at 500Vdc +/?50Vdc". (5) Where paragraph (4) of EASA AD 2025-0147 states "contact Leonardo Product Support Engineering for applicable instructions", this AD requires replacing that text with "repair the discrepancy using a method approved by the Manager, International Validation Branch, FAA; or EASA; or Leonardo Helicopters' EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature". (6) Where paragraph (5) of EASA AD 2025-0147 states "any discrepancy is detected", this AD requires replacing that text with "if bonding strap is missing". (7) This AD does not adopt the "Remarks" section of EASA AD 2025-0147. (i) Special Flight Permits Special flight permits are permitted provided the air intake heating system is not used during the ferry flight. (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: [email protected]. (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 Adam Hein, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (316) 946-4116; email: [email protected]. (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 2025-0147, dated July 11, 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: [email protected]; website: easa.europa.eu. You may find this 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 [email protected] . Issued on September 17, 2025. Steven W. Thompson, Acting Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2025-18497 Filed 9-22-25; 4:15 pm]BILLING CODE 4910-13-P