Ice/Rain Protection

Question 1

which areas of the wings and engines are provided ice protection

Answer 1

wings: outboard 3 slats
engines: engine nacelle leading edge

Question 2

Recall whether an engine’s bleed valve must be open to use its engine anti-ice system.

Answer 2

No

Question 3

indications when engine anti-ice is selected on.

Answer 3

▪ ON (blue) illuminates on the respective ENG 1(2) pb.

▪ ENG A.ICE and IGNITION (green) appears on the E/WD memo section.

Question 4

indications of wing anti-ice being selected on.

Answer 4

▪ ON (blue) illuminates on the WING pb.
▪ WING A. ICE (green) appears on the E/WD memo section.
▪ ANTI ICE (white) appears on each side of the BLEED page.
▪ Green arrows appear on each side of the BLEED page when the respective
wing anti-ice valve is open for that wing.

Question 5

meaning of the FAULT (amber) light in the WING and ENG 1(2) ANTI ICE pbs.

Answer 5

▪ Appears momentarily during valve transition.
▪ Represents disagreement between the selected position and actual respective valve’s position.
▪ The FAULT light on the WING pb also indicates low bleed air pressure is being detected.

Question 6

operation of the Probe and Window heating system with the PROBE/WINDOW HEAT pb in AUTO (light out).

Answer 6

▪ On the ground, with at least one engine running:
o all flight deck windows/windshields, pitot probes, static ports, and AOA probes
are automatically heated at a low heat level.
▪ Once airborne, heat levels are increased, and the TAT probes are heated.

Question 7

operation of the Probe and Window heating system with the PROBE/WINDOW HEAT pb selected ON.

Answer 7

▪ On the ground, with engines not running:
o all flight deck windows/windshields, pitot probes, static ports, and AOA probes
are heated at a low heat level.