S201 AFM
4 - NORMAL PROCEDURES
4.4 - CHECKLISTS FOR NORMAL
OPERATING PROCEDURES
27/06/2019
SONAIR-S2-D-MAN-006
Page : 4-33
Rev. : A
4.4.21
FLIGHT IN COLD AND MOIST CONDITION
If flying into humid area with Dew Point close to 0°C OAT, engine is warmed up
with carburettor heater on full position.
Select appropriate carburettor heater control position according to flight
conditions:
Take off, Climb and Go-Around
- carburettor heater off
- pitot heat on (optional equipment)
Flight
- carburettor heater on (open slowly to
avoid thermal shock)
- pitot heat on (optional equipment)
Descent, Approach, Landing
- carburettor heater on
- pitot heat on (optional equipment)
After Landing
- pitot heat off (optional equipment)
CAUTION
Always close carburettor heater during operation at maximum
continuous power or above. Failing to do so might damage the engine.
CAUTION
Carburettor heater should be used either fully open (pulled) or fully
closed (pushed). Do not use intermediate position.