AD 2016-04-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Turbomeca | S | Airworthiness Directives; Turbomeca S.A. Turboshaft Engines |
Unsafe Condition
Reports of uncommanded in-flight shutdowns (IFSDs) due to untimely activation of the tachometer box shut-off system, which could lead to engine failure, IFSD, and loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the affected tachometer box from the engine within 1,600 flight hours after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 1,600 flight hours after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Turbomeca S.A. Arriel 1E2 turboshaft engines with specific tachometer box part numbers and serial numbers, as detailed in the AD, and with installed electrical connectors labeled as P10106, P10098, P10108, or P11F, P13F, P15F.
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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