Airworthiness Directive · Amendment 39-15047 · Turbomeca Arriel 2B1 Turboshaft Engines
Turbomeca Arriel 2B1 Turboshaft Engines
This AD applies to Turbomeca Arriel 2B1 turboshaft engines. These engines are installed on, but not limited to, Eurocopter AS 350 B3 and EC 130 B4 single-engine 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) As soon as practicable, but no later than August 31, 2007, modify the digital electronic control unit (DECU) by downloading the TU144C software version 5.02, using the Instructions to be Incorporated of Turbomeca Mandatory Service Bulletin (MSB) No. 292 73 2144, dated January 5, 2007.
(2) Send Turbomeca the DECU replacement compliance certificate, as specified in paragraph 2D(1)(a)3 of Turbomeca MSB No. 292 73 2144, dated January 5, 2007.
None.
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.
