Specifications

SECTION V
ABNORMAL PROCEDURES
MODEL 560
ANGLE-OF-ATTACK PROBE HEATER FAILURE (AOA HTR FAIL CAUTION LIGHT ON)
Indicates that the angle of attack probe heating element has failed.
1. PITOT & STATIC Heat Switch - CHECK ON.
2. AOA HEATER Circuit Breaker (LH panel) - CHECK IN.
3. Leave icing environment as soon as practical.
4. If AOA Probe becomes iced, maintain the following minimum airspeeds:
FLAPS 0° = V
APP
+10 KIAS
FLAPS 7° = V
APP
+5 KIAS
FLAPS 15° = V
APP
FLAPS 35° = V
REF
NOTE
If the AOA probe heater fails and the AOA probe becomes iced, the stick shaker,
angle of attack indexer, angle of attack gauge, and low airspeed awareness display on
the PFDs may not function properly.
PFD ATTITUDE FAILURE - SINGLE (RED ATT FAIL ON PFD ADI)
1. ATT REV Button - PUSH (applicable display). Verify that amber ATT2 or ATT1 is displayed in
both pilot’s and copilot’s PFD. Autopilot will remain inoperative.
PFD HEADING FAILURE - SINGLE (RED HDG FAIL ON PFD HSI)
1. HDG REV Button - PUSH (applicable display). Verify that amber MAG2 or MAG1 is displayed in
pilot’s and copilot’s PFD.
NOTE
Standby HSI heading may become inoperative if pilot's heading source fails.
AIR DATA COMPUTER FAILURE - SINGLE (RED X ON PFD AIRSPEED/ALTITUDE TAPES)
1. ADC REV Button - PUSH (applicable display). Verify that amber, ADC2 or ADC1 is displayed in
pilot’s and copilot’s PFD.
2. If copilot's ADC has failed, refer to Abnormal Procedures, CABIN PRESSURIZATION
CONTROLLER FAILURE.
NOTE
If normal operation of the ADC is restored, all flight director modes and autopilot
must be selected OFF and then back ON.
3. XPDR ENC ALT - PRI or SEC (SELECT side with operable ADC).
I 5-24 Configuration AA 56OMB-01