DA20-C1 Flight Manual
Supplement 11
Doc # DA202-C1 April 06, 2010 Page S11 - 4
3. EMERGENCY PROCEDURES
Icing: Unintentional Flight into Icing Area Checklist has been repeated in this section to include
operations with pitot heat system installed.
3.3.5. Icing
Unintentional Flight into Icing Area
1. Pitot Heat ON
2. Leave icing area (through change of
altitude or change of flight direction to
reach area with higher outside air temp.).
3. Continue to move control surfaces to
maintain their moveability.
4. Alternate Air ON
5. Increase RPM to avoid icing of propeller
blades (observe maximum RPM)
6. Cabin Heat ON
DEFROST
CAUTION
IN CASE OF ICING ON THE LEADING EDGE OF THE WING,
THE STALL SPEED WILL INCREASE.
CAUTION
IN CASE OF ICING ON WING LEADING EDGE, ERRONEOUS
INDICATING STALL WARNING SHOULD BE EXPECTED.
4. NORMAL PROCEDURES
4.4.0. General
The “Pitot Heat” system should be operated where meteorological conditions warrant its use
and where government regulations require its operation.
Revision 25 DOT Approved
As part of 4.4.1. Preflight Inspection: Walk Around, check the pitot probe insulating spacer for
signs of charring near the pitot probe. If signs of overheating are present maintenance action
will be required prior to flight.
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