AD 2013-11-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Turbomeca | S | Airworthiness Directives; Turbomeca S.A. Turboshaft Engines |
Unsafe Condition
A blocked condition in the fuel injection manifolds and privilege injector could lead to an uncommanded in-flight shutdown and damage to the helicopter.
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Required Actions
Replace fuel injection manifolds and privilege injectors repetitively, depending on the engine model. Perform a borescope inspection of the flame tube and HP turbine area when replacing these components for the first time. Replace components sooner if a negative T45 margin is detected during scheduled maintenance.
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Compliance Time
Within specified operating hours (200 or 400 TSN) or sooner if a negative T45 margin is detected.
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Affected Aircraft
Turbomeca S.A. Arrius 2B1 and 2F turboshaft engines installed on helicopters of U.S. registry.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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