AD 2006-07-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Turbomeca | Makila 1 A2 | Airworthiness Directives; Turbomeca Makila 1 A2 Turboshaft Engines |
Unsafe Condition
Makila 1 A2 turboshaft engines with software version 9 installed in the digital electronic control unit (DECU), under certain conditions, could experience a free turbine overspeed and uncontained failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Upgrade the software version in the DECU from version 9 (TU 230C) to version 11 (TU 244C). Ensure that version 11 (TU 244C) software is not intermixed on the helicopter with any other DECU software version except version 9 (TU 230C).
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
No later than November 30, 2008
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Turbomeca Makila 1 A2 turboshaft engines installed on, but not limited to, Eurocopter AS 332 L2 helicopters.
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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