-18-02 Angle of Attack (AOA) | Heater | -01 Probe C 2 1 One may be inoperative provided aircraft | (Units -0001 thru -0500) is not operated in known, forecast, or | (Amber AOA HEAT FAIL L AFM-defined icing conditions. | or R message) | -01 Vane C 2 1 One may be inoperative provided aircraft | (Units -0501 and on) is not operated in known, forecast, or | (Amber AOA HEAT FAIL L AFM-defined icing conditions. | or R message) | -02 Case C 2 1 One may be inoperative provided aircraft | is not operated in known, forecast, or | AFM-defined icing conditions. | -22-02 Standby Horizontal Situation B 1 0 May be inoperative provided: | Indicator Dual heading information sources | (Heading information only) are operative, and | (Units -0001 thru -0500) Magnetic compass is operative. | -23-01 Non-stabilized Magnetic | Compass | (Units -0001 thru -0500) | -00A (Day, VMC) B 1 0 May be inoperative provided: | Any combination of two gyro, | AHRS or INS-stabilized compass | systems are operative, and | Aircraft is not operated at night or | in Instrument Meteorological | Conditions (IMC). | (Continued)
-18-02 Angle of Attack (AOA) Heater | | -01 Probe (Units -0001 thru -0500) (Amber AOA HEAT FAIL L or R message) C 2 1 One may be inoperative provided aircraft is not operated in known, forecast, or AFM-defined icing conditions. | | | | -01 Vane (Units -0501 and on) (Amber AOA HEAT FAIL L or R message) C 2 1 One may be inoperative provided aircraft is not operated in known, forecast, or AFM-defined icing conditions. | | | | -02 Case C 2 1 One may be inoperative provided aircraft is not operated in known, forecast, or AFM-defined icing conditions. | | | -22-02 Standby Horizontal Situation Indicator (Heading information only) (Units -0001 thru -0500) B 1 0 May be inoperative provided: Dual heading information sources are operative, and Magnetic compass is operative. | | | | -23-01 Non-stabilized Magnetic Compass (Units -0001 thru -0500) | | | -00A (Day, VMC) B 1 0 May be inoperative provided: Any combination of two gyro, AHRS or INS-stabilized compass systems are operative, and Aircraft is not operated at night or in Instrument Meteorological Conditions (IMC). | | | | | | | (Continued)
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