Federal Register #FAA20267212

FAA Airworthiness Directive: Placard Installation and Manual Revision for Leonardo AB139/AW139 Helicopters with Aerolite Stretcher Kits

This opportunity concerns a proposed FAA airworthiness directive for Leonardo S.p.a. AB139 and AW139 helicopters modified by FAA STC SR04384NY. - Government Buyer: - Federal Aviation Administration (FAA), Department of Transportation - OEMs and Vendors: - Leonardo S.p.a. (helicopter manufacturer) - Aerolite AG (manufacturer of stretcher units, placards, and flight manual supplements) - Products/Services Requested: - Installation of Aerolite placards on the primary stretcher unit: - Group 1 helicopters: Placard P/N 0800312690001 - Group 2 helicopters: Placard P/N 015390001 - 3-Stretcher Kit (P/N 139084501) for Leonardo AB139/AW139 helicopters - Revision of the rotorcraft flight manual to incorporate Aerolite FMS07008 Flight Manual Supplement (for 3-Stretcher Kit P/N 139084501, Revision B) - Unique/Notable Requirements: - Compliance with Aerolite Service Bulletin SB21017, Revision D, and Alert Service Bulletin ASB21006 - Placard installation and manual revision are required to address a design deficiency in the stretcher unit, improving occupant safety during emergency landings - Estimated 11 helicopters in the U.S. registry are affected - Compliance deadlines are based on hours of time-in-service or days after directive adoption, not fixed calendar dates

Description

The FAA proposes to supersede Airworthiness Directive (AD) 2021-12-10 for certain Leonardo S.p.a. Model AB139 and AW139 helicopters. The proposed AD requires installing a placard on the primary stretcher unit depending on its configuration and revising the rotorcraft flight manual. It also revises applicability to include only helicopters modified by FAA Supplemental Type Certificate SR04384NY. The AD addresses a design deficiency in the primary stretcher unit to prevent failure during emergency landings and potential injury.

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