Airworthiness Directive · Amendment 39-15805 · Turbomeca S.A. Models Arriel 1E2, 1S, and 1S1 Turboshaft Engines
Turbomeca S.A. Models Arriel 1E2, 1S, and 1S1 Turboshaft Engines
Superseded. A later AD replaced this one: AD 2012-23-12. Comply with the one in force.
This AD applies to Turbomeca S.A. Models Arriel 1E2, 1S, and 1S1 turboshaft engines. These engines are installed on, but not limited to, Eurocopter Deutschland MBB-BK 117 series and Sikorsky S-76A series helicopters.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Unless already done, do the following actions.
(1) Within 100 operating hours from effective date of this AD, perform a one time inspection of the correct reference of the plug installed on the FCU 3-way union (9 932 30 706 0) and verify its torque to be set between 1.3 and 1.5 daN.m in accordance with Turbomeca Mandatory Service Bulletin 292 73 0817.
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.
