AD 2024-20-07: Various Helicopters

What the FAA requires

The FAA is adopting a new airworthiness directive (AD) for various helicopters modified by certain supplemental type certificates (STCs) that approve the installation of an emergency float kit or an emergency float with a liferaft kit. This AD was prompted by the results of an accident investigation and subsequent reports of difficulty pulling the emergency float kit activation handle installed on the pilot cyclic. This AD requires repetitively inspecting the pull force on the float activation handle and for certain model helicopters, this AD also requires and replacing certain part-numbered float inflation reservoirs (reservoirs) and pull cable assemblies (cables) with other part-numbered reservoirs and cables. Finally, this AD prohibits installing certain part-numbered reservoirs and cables on specific helicopters. The FAA is issuing this AD to address the unsafe condition on these products.

Read the full directive on the Federal Register →

Applicability

This AD applies to the helicopters identified in paragraphs (c)(1) through (8) of this AD, certificated in any category. (1) Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters modified by Supplemental Type Certificate (STC) SR00831LA; Model EC120B helicopters modified by STC SR00780LA; and Model EC130B4 helicopters modified by STC SR01687LA. Note 1 to paragraph (c)(1): Helicopters with an AS350B3e designation are Model AS350B3 helicopters. (2) Airbus Helicopters Deutschland GmbH (AHD) Model BO-105A, BO-105C, BO-105S, and BO-105LS A-3 helicopters modified by STC SR00856LA; Model EC135P1, EC135P

Part numbers this directive names (9)

Extracted from the directive text. For each: the NSN cross-reference where one exists, sellers listing it here, and open DLA solicitations on the NSN.