ANTI-ICE, RAIN

Question 1

Which Flight Deck windows are heated?

Answer 1

Windows 1 and 2.
- Note label on switches.

Question 2

What happens if an overheat condition is detected in windows L1/R1 or L2/R2?

Answer 2

An overheat will automatically remove power from the window heat system and illuminate the OVERHEAT light for the associated window.
The light remains illuminated until the window has cooled; however, the system
must be manually reset by resetting the WINDOW HEAT switch OFF, then ON.

Question 3

The Engine Anti-Ice System uses engine bleed air to prevent ice formation on which parts of the engine?

Answer 3

TAI (Engine Thermal Anti Icing) prevents ice on the Engine Cowl Lip and Core anti-ice using bleed from the 4th and 10th stages

Core anti-ice is automatically controlled by the EEC with no Flight Crew input or indication.

Question 4

What does a green TAI indicate above the N1 indicator?

Answer 4

Green when the switch is on and the Anti-Ice valve is open meaning the TAI is in use.

Question 5

What does an amber TAI indicate above the N1 indicator?

Answer 5

TAI valve and switch position disagree for more than 8 seconds.

Question 6

What causes the ENG ANTI-ICE light to illuminate?

Answer 6

A cowl TAI has been inhibited due to a system failure or
engine core anti-ice valve has failed in the closed position.

Question 7

What causes the COWL ANTI-ICE (amber) light to illuminate?

Answer 7

Indicate an over pressure condition in the associated duct downstream of the engine cowl anti-ice valve.

Question 8

The Wing Anti-Ice System uses engine bleed air to prevent ice formation on which part(s) of the wing?

Answer 8

• The three inboard
  leading-edge slats
  with bleed air.
• Does not include:
  leading edge flaps
  outboard leading-edge slat.

Question 9

How does wing anti-ice affect stall logic?

Answer 9

Putting WING ANTI-ICE switch to ON:
sets stall warning logic by increasing the stall warning logic to increase stick shaker and minimum maneuver speed for remainder of the flight.

Question 10

What occurs if wing anti-ice is used during takeoff?

Answer 10

The wing anti-ice valve will close when the thrust levers are advanced for take-off. The switch will trip off at lift off to match valve position (it will turn on)

Question 11

Which parts of the aircraft are electrically heated?

Answer 11

All pitot tubes, AOA vanes, and the TAT probe are electrically heated.

PROBE HEAT panel allow for automatic and manual application of heat

L1, R1 and L2, R2 are also heated

Question 12

When will the L or R valve caution light show?

*Question not in back of chapter

Answer 12

When the wing anti-ice valves are in transit or disagree with the WING ANTI-ICE switch position

or
insufficient duct pressure exists with
the WING ANTI-ICE switch ON below FL280.

Question 13

What can happen if the there’s a failure to position the PROBE switches to AUTO on the ground after landing?

Answer 13

This results in the probe heat system applying heat to the probes. This condition results in the inability to enter performance information on a subsequent flight due to the increased TAT