AD 2021-24-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes |
Unsafe Condition
If the engine fire handle fails, the flightcrew might not be able to extinguish an engine fire using the engine fire extinguisher system, which is the primary method for extinguishing engine fires. The FAA is issuing this AD to address this condition, which, if not detected and corrected, and combined with an engine fire, could lead to a failure of the engine fire handle to operate, possibly resulting in an uncontrolled engine fire and reduced control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
A general visual inspection of both engine's fire handles for an incorrect snap wire, and applicable corrective actions. Corrective actions include removing the incorrect snap wire, installing the correct snap wire, and installing the safety seal.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
ATR--GIE Avions de Transport R[eacute]gional Model ATR42-200, -300, -320, -500 airplanes and Model ATR72-101, -102, -201, -202, -211, -212, and -212A airplanes.
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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