Airworthiness Directive · Amendment 39-22306 · Engine
Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Turboshaft Engines
Superseded. A later AD replaced this one: AD 2023-13-14. Comply with the one in force.
This AD applies to all Safran Helicopter Engines, S.A. (Type Certificate previously held by Turbomeca, S.A.) Arriel 1C, Arriel 1C1, and Arriel 1C2 model turboshaft engines.
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 installation of affected fire detectors. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified in paragraphs (h) and (i) of this AD: Perform all required actions within the compliance times specified in, and in accordance with European Union Aviation Safety Agency (EASA) AD 2022-0256, dated December 19, 2022 (EASA AD 2022-0256).
(1) Where EASA AD 2022-0256 requires compliance from its effective date, this AD requires using the effective date of this AD.
(2) This AD does not adopt the “Remarks” section of EASA AD 2022-0256.
(3) Although the service information referenced in EASA AD 2022-0256 specifies to discard any removed fire detectors, this AD requires removing those parts from service.
Although the service information referenced in EASA AD 2022-0256 specifies to submit certain information to the manufacturer, this AD does not include that requirement.
