Superseded. This AD was superseded by AD 2023-13-14. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2023-01-12
Effective 02/06/2023 · Published 01/20/2023
Airworthiness Directives; Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Turboshaft Engines
Summary
The FAA is adopting a new airworthiness directive (AD) for all Safran Helicopter Engines, S.A. (Safran) Arriel 1C, Arriel 1C1, and Arriel 1C2 model turboshaft engines. This AD was prompted by reports of false engine fire warnings. This AD requires replacing the affected fire detectors, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD also prohibits the in…