Airworthiness Directive · Amendment 39-12275 · Turbomeca S.A. Artouste II and Artouste III Series Turboshaft Engines
Turbomeca S.A. Artouste II and Artouste III Series Turboshaft Engines
This airworthiness directive (AD) is applicable to Turbomeca S.A. Artouste II and Artouste III series turboshaft engines. These engines are installed on, but not limited to, Alouette II SE 3130, Alouette II SE 313 B, Eurocopter SA 315 LAMA, and SA 316 Alouette III series helicopters.
This amendment adopts a new airworthiness directive (AD), that is applicable to Turbomeca S.A. Artouste II and Artouste III series turboshaft engines. This amendment requires installation of modification TU 24, TU 167, or TU 164, depending on the specific engine series. These modifications will prevent uncommanded partial closing or total closing of the electrical fuel cock, which will prevent uncommanded in-flight engine shutdown. From the effective date of this AD, and until the modification is installed, this amendment will also limit the duration of the engine operating cycle. This amendment is prompted by reports of unexpected power loss during test flights. The actions specified by this AD are intended to prevent unexpected power loss, which could result in an uncommanded in-flight engine shutdown, autorotation, and forced landing.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Engines
