AD 2010-09-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Turbomeca Makila 2A Turboshaft Engines |
| engine | Turbomeca | Makila 2A | Airworthiness Directives; Turbomeca Makila 2A Turboshaft Engines |
Unsafe Condition
Some digital engine control units (DECUs) used to control MAKILA 2A and MAKILA 2A1 engines have an ambient pressure (P0) sensor with a measurement accuracy that may be outside the range required for satisfactory functioning of the engines throughout the entire operating envelope. In certain extreme flight conditions, the lack of P0 measurement accuracy could potentially cause an engine flameout if the engine is operating on a replacement fuel.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the serial number (S/N) DECUs listed in the applicability paragraph of this AD within 75 flight hours after the effective date of this AD. The replacement must be with a DECU having a S/N not listed in the applicability paragraph or a DECU having a S/N listed in the applicability paragraph that has been returned to an approved repair center since January 1, 2010.
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Compliance Time
Within 75 flight hours after the effective date of this AD.
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Affected Aircraft
Turbomeca Makila 2A turboshaft engines with any of the specified serial number (S/N) digital engine control units (DECUs) installed, if the DECU has not been returned to an approved repair center since January 1, 2010. These engines are installed on, but not limited to, Eurocopter France EC 225LP helicopters.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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