AD 2003-19-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Turbomeca | S | Airworthiness Directives; Turbomeca S.A. Arrius 2 B1, 2 B1A, 2 B1A 1, and 2 K1 Turboshaft Engines |
Unsafe Condition
Failure of an HP turbine blade during accelerated aging simulation tests performed by the manufacturer on an Arrius 2 B1A engine.
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Required Actions
Replace the gas generator HP turbine disk before further flight after the engine has accumulated 5 minutes of operating time at the 2.5-minute one engine inoperative (OEI) power rating.
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Compliance Time
Before further flight after the engine has accumulated 5 minutes of operating time at the 2.5-minute OEI power rating.
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Affected Aircraft
Turbomeca S.A. Arrius 2 B1, 2 B1A, 2 B1A 1, and 2 K1 turboshaft engines installed on, but not limited to, Eurocopter Deutschland GmbH model EC135 T1 and Agusta S.p.A. model A109 helicopters.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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