Airworthiness Directives (ADs)
CAA-2010-11-011
The aircraft owner or operator shall comply with Airworthiness Directives issued by the CAA or the aeronautics authority of the State of Design (SoD) of the aviation products, appliances and parts, and take all necessary actions thereto.
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Issue Date
- 2010/12/02
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Applicability
- Embraer Empresa Brasileira de Aeronáutica S.A. model EMB-500 airplanes of serial numbers 50000005 thru 50000175, 50000177 and, 50000178, that are equipped with Angle of Attack (AOA) sensors part number (P/N) C-100117-2 and cover plates P/N 500-01702-401 and/or P/N 500-01702-402.
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Model Number
- EMB-500 airplanes
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CAA AD Number
- CAA-2010-11-011
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Aeronautics Authority of Original AD
- ANAC
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Original AD Number
- 2010-11-01(BRAZIL)
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Effective Date
- 2010/12/20
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Subject
- It has been found that moisture may accumulate and freeze, under certain conditions, in the gap between the AOA vane base assembly and the stationary ring of the sensor's body. If freezing occurs both AOA sensors may get stuck and the Stall Warning Protection System (SWPS) will be no longer effective without alerting. This may result in inadvertent aerodynamic stall and loss of controllability of the airplane.
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Reference Publications (Revision/ATA/SB)
- Embraer Service Bulletin No. 500-27-0006.
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Remarks
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