AOA De Ice
3-18-06
WARNING
AN AOA PROBE DEICE FAILURE IN ICING CONDITIONS CAN CAUSE A
FALSE ACTIVATION OF THE STALL PROTECTION SYSTEM.
1.
PROBES switch..........................
Set to OFF and wait 3 minutes
2.
PROBES switch..........................
Set to ON
3.
LH AOA SENS DE-ICE circuit
breaker (Essential Bus
L
L2)........
Check. Do not reset unless tripped
4.
LH AOA PLATE HEAT circuit
breaker (Essential Bus
L
K2)........
Check. Do not reset unless tripped
5.
RH AOA SENS DE-ICE circuit
breaker (Main Bus
R
C2)..............
Check. Do not reset unless tripped
6.
RH AOA PLATE HEAT circuit
breaker (Main Bus
R
D2)..............
Check. Do not reset unless tripped
If caption returns to normal operation:
7.
Aircraft.........................................
Continue flight and monitor system
If caption stays in failure status:
8.
Aircraft.........................................
DEPART ICING CONDITIONS to positive
SAT atmosphere, if possible
CAUTION
Stick shaker may activate at higher speeds than normal. If this occurs,
increase speed until shaker stops.
9.
Aircraft.........................................
Avoid further icing conditions
10.
Flap position................................
Limited to 15°
11.
Landing approach for 9921 lb
(4500 kg) (MLW).........................
Keep minimum landing approach speed
above 105 KIAS or shaker activation
speed, whichever is highest
CAUTION
On landing approach after AOA deice failure, the PFD Dynamic Speed Bug
will not be correct and should not be used as reference.
CAUTION
The total landing distance will be longer by up to 71%. Refer to Section 5,
Performance, Flight in Icing Conditions,
Flight in Icing Conditions - Landing
for the exact landing distance calculation.
---------- END -----------
Section 3 - Emergency Procedures (EASA Approved)
Deice Systems
Pilot's Operating Handbook
Report No: 02406
Issue date: Mar 06, 2020
Page 3-18-5
12-C-A15-40-0318-00A-141A-A
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