DA 42 AFM
Abnormal Operating
Procedures
Doc. No. 7.01.05-E Rev. 8 15-Dec-2017 Page 4B - 19
4B.4.9 STALL HT FAIL/OFF
STAL HT FAIL
Stall warning heat has failed.
STAL HT OFF
Stall warning heat is OFF.
1. PITOT HEAT ........................ check ON / as required
NOTE
The STAL HT OFF caution message is displayed when the
Pitot heating is switched OFF, or STAL HT FAIL when there
is a failure of the stall warning heating system. Operation of
the stall warning heating on the ground also causes the stall
warning heating failed caution message to be displayed. In
this case it indicates the activation of the thermal protection
relay, which prevents overheating of the stall warning heating
system on the ground. This is a normal function of the system.
If in icing conditions:
2. Expect loss of acoustic stall warning.
3. Leave icing zone / refer to 3.9.4 - UNINTENTIONAL FLIGHT INTO ICING.
END OF CHECKLIST
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