Airworthiness Directive · Amendment 39-15678 · Turbomeca S.A. Arrius 2B1, 2B1A, 2B2, and 2K1 Turboshaft Engines
Turbomeca S.A. Arrius 2B1, 2B1A, 2B2, and 2K1 Turboshaft Engines
This AD applies to Turbomeca S.A. Arrius 2B1, 2B1A, 2B2, and 2K1 turboshaft engines. These engines are installed on, but not limited to, Eurocopter Deutschland GmbH EC135, and Agusta S.p.A. A109E helicopters.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) provided by the European Aviation Safety Agency (EASA) to identify and correct an unsafe condition on Turbomeca S.A. Arrius 2B1, 2B1A, 2B2, and 2K1 turboshaft engines. The MCAI describes the unsafe condition as:
Unless already done, within the next 100 flight hours or 2 months, whichever occurs first after the effective date of this AD, do the following actions:
(1) Identify the EEC units as listed in Turbomeca S.A. Mandatory Service Bulletin No. 319 73 2835, Update No. 1, dated December 21, 2006; and
(2) For affected EECs, modify or replace the EEC units using the instructions of Turbomeca S.A. Mandatory Service Bulletin No. 319 73 2835, Update No. 1, dated December 21, 2006.
(3) After the effective date of this AD, do not install an EEC with a serial number listed in Turbomeca S.A. Mandatory Service Bulletin No. 319 73 2835, Update No. 1, dated December 21, 2006 on any helicopter, unless it has been modified using the instructions of Turbomeca S.A. Mandatory Service Bulletin No. 319 73 2835, Update No. 1, dated December 21, 2006.
This AD requires modification or replacement of both EECs if both EECs are affected on the same helicopter, whereas MCAI EASA AD 2008-0018, dated January 24, 2008, requires modification of at least one EEC, if both EECs are affected, and modification or replacement of the remaining EEC, within 300 flight hours or 12 months, whichever occurs first.
(g) This AD immediately prohibits installation of any EECs that are affected, whereas MCAI EASA AD 2008-0018, dated January 24, 2008, prohibits installation of those EECs after February 7, 2009.
(h) Alternative Methods of Compliance (AMOCs): The Manager, Engine Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19.
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.
