Abnormal Operating
Procedures
DA 42 AFM
Page 4B - 18 Rev. 8 15-Dec-2017 Doc. No. 7.01.05-E
4B.4.8 PITOT FAIL / HT OFF
PITOT FAIL
Pitot heating system has failed.
PITOT HT OFF
Pitot heating system is OFF.
1. PITOT HEAT......................... check ON / as required
NOTE
The Pitot heating caution message is displayed when the Pitot
heating is switched OFF, or when there is a failure of the Pitot
heating system. Prolonged operation of the Pitot heating on
the ground can also cause the Pitot heating caution message
to be displayed. In this case it indicates the activation of the
thermal switch, which prevents overheating of the Pitot
heating system on the ground. This is a normal function of
the system. After a cooling period, the heating system will be
switched on again automatically.
If in icing conditions:
2. Expect loss of static instruments.
3. Open alternate static.
4. Leave icing zone / refer to 3.9.4 - UNINTENTIONAL FLIGHT INTO ICING.
END OF CHECKLIST
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