AD 2021-17-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes |
Unsafe Condition
false activation of the stall warning system due to wiring damage on the wire bundle between an AOA probe and the crew alerting computer
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
a one-time detailed visual inspection of the wire bundles between the left- and right-hand AOA probes and the crew alerting computer for discrepancies, and, depending on findings, applicable corrective actions, modifying the captain stick shaker wiring, and amending the systems limitations section of the applicable AFM to incorporate procedures for the stick pusher/shaker
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Compliance Time
Before further flight
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Affected Aircraft
all ATR--GIE Avions de Transport Régional Model ATR42-200, -300, and -320 airplanes
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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