AIRPLANE
OPERATIONS
MANUAL
ICE AND RAIN
PROTECTION
REVISION 39
2-15-10
Page
17
Code
01
AOM-145/1114
6 - ICE DETECTION OVERRIDE KNOB
ENG - Turns on the engine air inlet anti-icing subsystems for
ground speeds below 25 kt. Above 25 kt the wing and
horizontal stabilizer anti-icing subsystems are also
turned on if icing condition is detected.
AUTO - Allows the automatic operation of the bleed air anti-icing
system.
NOTE: If ground speed is equal or above 25 kt and an
icing condition is detected, wing and horizontal
stabilizer anti-icing subsystems are turned on.
The engine anti-icing subsystem is turned on
as soon as an icing condition is detected.
ALL - Turns on the complete bleed air anti-icing system
provided airplane is on ground at speed equal or above
25 knots or in flight.
NOTE: On ground, below 25 kt, only engine anti-icing
is turned on.
7 - WINDSHIELD HEATING BUTTON
− Turns on (pressed) or turns off (released) the windshield heating
system.
− A striped bar illuminates inside the button to indicate that it is
released.
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