2025-11-04: Engine Exhaust

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2025-11-04 Israel Aircraft Industries, Ltd.: Amendment 39-23050; Docket No. FAA-2025-0915; Project Identifier MCAI-2025-00255-T. (a) Effective Date This airworthiness directive (AD) is effective June 23, 2025. (b) Affected ADs None. (c) Applicability This AD applies to all Israel Aircraft Industries Ltd. Model 1124 and 1124A airplanes, certificated in any category. (d) Subject Air Transport Association (ATA) of America Code 78, Engine Exhaust. (e) Reason This AD was prompted by the need to ensure proper thrust reverser system status and function and to minimize the possibility of thrust reverser operation in flight or before landing. The FAA is issuing this AD to prevent deployment of a thrust reverser in flight or before landing. The unsafe condition, if not addressed, could result in loss of control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Revision of Existing Airplane Flight Manual (AFM) Before further flight after the effective date of this AD, revise the Limitations and Normal Procedures sections of the existing AFM to include the information specified in pages I-9, IV-18, IV-21, and IV-25 in Israel Aircraft Industries Ltd. 1124-Westwind AFM Temporary Revision (TR) No. 8, dated March 13, 2024, or Israel Aircraft Industries Ltd. 1124A-Westwind AFM TR No. 9, dated March 13, 2024, as applicable to your model airplane. Using a different document with information identical to the information in the TR pages is acceptable for compliance with the requirements of this paragraph. (h) Special Flight Permits Special flight permits, as described in 14 CFR 21.197 and 21.199, are prohibited. (i) Additional AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): 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 responsible Flight Standards 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 (j) of this AD and email to: AMOC@faa.gov . Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or the Civil Aviation Authority of Israel (CAAI); or the CAAI's authorized Designee. If approved by the CAAI Designee, the approval must include the Designee's authorized signature. (j) Additional Information For more information about this AD, contact Alexis Whitaker, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (516) 228-7309; email: 9-AVS-AIR-BACO-COS@faa.gov. (k) 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 this AD specifies otherwise. (i) Israel Aircraft Industries Ltd. 1124-Westwind Airplane Flight Manual (AFM) Temporary Revision (TR) No. 8, dated March 13, 2024. (ii) Israel Aircraft Industries Ltd. 1124A-Westwind AFM TR No. 9, dated March 13, 2024. (3) For Israel Aircraft Industries material identified in this AD, contact Israel Aircraft Industries, Ltd., Ben Gurion International Airport 70100, Israel; telephone 972-3-9353090; email Aviation_Group@iai.co.il; website iai.co.il. (4) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. (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 June 2, 2025. Steven W. Thompson, Acting Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2025-10318 Filed 6-5-25; 8:45 am]BILLING CODE 4910-13-P