AD 2010-20-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Turboméca | S.A. ARRIEL 2B Turboshaft | Airworthiness Directives; Turboméca S.A. ARRIEL 2B Turboshaft Engines |
Unsafe Condition
Stuck controller axles in the metering valve body, which can lead to loss of control of engine fuel flow in manual or mixed control modes, resulting in engine overspeed and in-flight engine shutdown.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect, clean, lubricate, and check for proper operation of the HMU acceleration controller axle. Incorporate modification TU 149 to eliminate the unsafe condition and repetitive inspections.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Turboméca S.A. ARRIEL 2B turboshaft engines that do not incorporate modification TU 149.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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