AD 2011-17-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer | Various | Airworthiness Directives; Embraer-Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-500 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Embraer-Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-500 Airplanes |
Unsafe Condition
Moisture may accumulate and freeze in the gap between the AOA vane base assembly and the stationary ring of the sensor's body, potentially causing both AOA sensors to get stuck and rendering the Stall Warning Protection System (SWPS) ineffective without alerting, which may result in inadvertent aerodynamic stall and loss of controllability of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace both Angle of Attack (AOA) sensors and cover plates, inspect the sensor area, and apply sealant between the AOA covers and the AOA sensors if needed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Embraer EMB-500 airplanes, serial numbers 50000005 through 50000217, 50000219 through 50000221, and 50000226, equipped with AOA sensors part number C-100117-2 and cover plates P/N 500-01702-401 and/or P/N 500-01702-402.
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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