United 737 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
____ 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 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 ___
an overheat condition is simulated
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
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 the 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
The wing anti ice system excludes the ___ and the ____
leading edge flaps; outboard leading edge slats
On the ground, both of the wing anti ice valves close if ______ or either engine thrust is above the takeoff warning setting.
either temperature sensor senses a duct over temperature
What does a bright blue Wing Anti Ice VALVE OPEN light on the wing anti ice panel indicate
The related wing anti ice control valve is in transit or related wing anti ice control valve position disagrees with WING ANTI ICE switch position.
An Amber CAPT PITOT light on the Probe Heat Panel indicates
The probe is not heated
A green TAI on the upper display unit above the N1 gage indicates,
cowl anti-ice valve open
What supplies conditioned air to No. 1 windows for defogging?
WINDSHIELD AIR control knob located on the forward panel
