AD 2008-19-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Turbomeca S.A. Arrius 2B1, 2B1A, 2B2, and 2K1 Turboshaft Engines |
| engine | Turbomeca | S | Airworthiness Directives; Turbomeca S.A. Arrius 2B1, 2B1A, 2B2, and 2K1 Turboshaft Engines |
Unsafe Condition
A short circuit of some tantalum capacitors inside certain electronic control (EEC) units may lead to an in-flight shutdown on one of the two engines.
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Required Actions
Identify the EEC units as listed in Turbomeca S.A. Mandatory Service Bulletin No. 319 73 2835, Update No. 1. For affected EECs, modify or replace the EEC units using the instructions of the same service bulletin. After the effective date, do not install an EEC with a serial number listed in the service bulletin unless it has been modified.
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Compliance Time
Within the next 100 flight hours or 2 months, whichever occurs first after the effective date of this AD.
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Affected Aircraft
Turbomeca S.A. Arrius 2B1, 2B1A, 2B2, and 2K1 turboshaft engines installed on, but not limited to, Eurocopter Deutschland GmbH EC135 and Agusta S.p.A. A109E helicopters.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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