Ice and Rain Protection Flashcards
Recall which areas of the wings and engines are provided ice protections
-wings- outboard three slats 3,4,5
-engines- engine nacelle leading edge
Does the engines bleed valve need to be open to use its engine anti-ice system
No. Engine anti-ice is plumbed independently from the high pressure compressor, the engines bleed valve does not have to be open
Describe the indications when engine anti-ice is selected on
-ON (blue) illuminates on the respective ENG 1(2)pb
-ENG.A.ICE and IGNITION (green) appears on the E/WD memo section
Describe the indications of wing anti-ice being selected on
ON (blue)- illuminates on the WING pb
WING.A.ICE (green) appears on the E/WD memo section
ANTI ICE (white) appears on the side of the BLEED page
What is the meaning of the FAULT (amber) light in the WING and ENG1(2) ANTI ICE pb
-appears momentarily during valve transition
-represents disagreement between the selected position and actual respective valves position
-the FAULT light on the WING pb also indicates low bleed air pressure is being detected
Recall the operation of the probe and window heating system with the PROBE/WINDOW HEAT pb in AUTO (lights out)
On the ground with at least one engine running
-all flight deck windows/windshields, pitot probes, static ports, and AOA probes are automatically heated at a low heat level. TAT probes are not heated
Once airborne, heat levels are increased and the TAT probes are heated
Recall the operation of the probe and window heating system with the PROBE/WINDOW HEAT pb selected ON (lights out)
On the ground with engines NOT running all of the flight deck windows/windshields, pitot probes, static ports, and AOA probes are heated at a low level. TAT probes are not heated.
