AD 2012-03-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Eurocopter Deutschland Model EC135 Helicopters |
Unsafe Condition
A discrepancy generated within the fuel main metering unit and transmitted to the FADEC, which could lead to the display of the FADEC FAIL caution light and 'freezing' of the fuel main metering valve at its position, resulting in loss of the automatic engine control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 50 hours time-in-service (TIS), insert the specified synchronization procedure into the Rotorcraft Flight Manual (RFM) either by making pen-and-ink changes or by inserting a copy of this AD into the Limitations Section of the RFM.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 hours time-in-service (TIS)
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Eurocopter Deutschland Model EC135 helicopters with Turbomeca Arrius 2B or 2B1 engines installed, certificated in any category.
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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