AD 2009-23-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer | Various | Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-500 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-500 Airplanes |
Unsafe Condition
Heating deactivation of Air Data System (ADS) sensors due to inadequate automatic logic when ADS/AOA knob is on AUTO position, associated with messages such as DC BUS 1 OFF, EMER BUS OFF, or ELEC EMERGENCY on the Crew Alerting System (CAS).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Insert information into the Abnormal Procedures section of the FAA-approved airplane flight manual (AFM).
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Compliance Time
Before further flight
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Affected Aircraft
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-500 airplanes, all serial numbers, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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