Anti-Ice / Rain Flashcards
What position must Engine ignition be selected to prior to and during engine anti-ice operation?
- CONT
Window heat must be ON how many minutes before takeoff?
- 10 minutes
When must probe heat be ON?
- before takeoff
When must probe heat be ON?
- before takeoff
________flight deck windows are not electrically heated.
- L3 and R3
Temperature controllers maintain window heat at the correct temperature on which windows to ensure
maximum strength of the windows in the event of bird impact?
- L1, R1, L2, and R2
On the Window Heat Panel, when an overheat condition is detected, power is removed from the window,
the green ON light extinguishes, and __________.
- an amber OVERHEAT Light is illuminated
By placing the WINDOW HEAT Test Switch to OVHT, _______________ is simulated.
- an overheat condition
What happens when placing the WINDOW HEAT Test Switch to PWR TEST?
- It provides a confidence test.
Engine bleed air thermal anti-icing prevents the formation of ice on which part of the engine?
- engine cowl lip
Each cowl anti-ice valve is _______ actuated and ______ controlled.
- pressure; electrically
________________occurs when the ENG ANTI-ICE switches are positioned to ON.
- The stick shaker and minimum maneuver speed bars on airspeed indications are adjusted. The airspeed
indications return to normal when engine anti-ice is positioned OFF if wing anti-ice has not been used in
flight. - Engine bleed air is allowed to flow through the cowl anti-ice valve for cowl lip anti-icing, and the stick
shaker logic is set for icing conditions.
If the cowl anti-ice valve fails to move to the position indicated by the ENG ANTI-ICE switch, an amber TAI
indication illuminates on the CDS after a short delay and the COWL VALVE OPEN light ________ .
- remains illuminated bright blue
An amber illuminated COWL ANTI-ICE Light on the Engine Anti-Ice Panel indicates __________.
- excessive pressure in the duct leading from the cowl anti-ice valve to the cowl lip
What does an amber TAI on the upper display unit above the N1 gauge indicate?
- cowl anti-ice valve is not in position indicated by related engine anti-ice switch.