Anti-Ice, Rain

Question 1

What does the WINDOW HEAT OVERHEAT (amber) light mean?

Answer 1

An overheat condition (62 deg C) for the respective window

Sec 3.010 p 4

Question 2

Describe the Rain Removal System for the Forward Flight Deck Windows

Answer 2

Windshield wipers (Park, Int, Low, High)
Hydrophobic coating

(Sec 3.010 p 6-7)

Question 3

What does positioning ENG ANTI-ICE switches ON in flight do?

Answer 3

1) Allows engine bleed air to flow through the Cowl Anti-Ice Valve for cowl lip anti-icing
2) TAI (amber/green) is displayed above N1 indication on Engine Display
3) sets stall warning logic for icing conditions

(Sec 3.010 p 8)

Question 4

What does the COWL ANTI-ICE (amber) light mean?

Answer 4

Excessive pressure (>65 psi) in the duct from Cowl Anti-Ice Valve to the cowl lip

(Sec 3.010 p 8)

Question 5

With the Engine Anti-Ice selected ON, what is the difference between a dim blue and bright blue indication?

Answer 5

With Engine Anti-Ice selected ON:
dim blue = valve is open
bright blue = valve in transit or disagrees with switch position

(Sec 3.010 p 8)

Question 6

What does an amber TAI indication to the left of an N1 display on the Upper Display Unit indicate?

Answer 6

Amber = valve fails to move to the position selected by the ENG ANTI-ICE switch

(Sec 3.010 p 9)

Question 7

Which Devices (flaps and/or slats) are heated by the Wing Anti-Ice System?

Answer 7

The three inboard leading edge slats are heated regardless of position
It does not include the inboard leading edge flaps or outermost slat on each wing

(Sec 3.010 p 10)

Question 8

With the Wing Anti-Ice selected ON, what is the difference between a dim blue and bright blue indication?

Answer 8

With Engine Anti-Ice selected ON:
dim blue = valve is open
bright blue = valve in transit or disagrees with switch position

(Sec 3.010 p 8)

Question 9

What causes the Wing Anti-Ice Control Valves to close during ground operations?

Answer 9

Overtemperature (>125 deg C) sensed in the ground mode, or
transition from ground to air mode

(Sec 3.010 p 10)

Question 10

How is the stall warning logic for icing conditions affected with the WING ANTI-ICE switch?

Answer 10

Stall warning logic adjusts Stick Shaker and min maneuver bars on airspeed indications

(Sec 3.010 p 12)

Question 11

The PROBE HEAT provides electrical heating for which sensors?

Answer 11

CAPT & F/O Pitot, L & R Elev Pitot, L & R Alpha Vane, Temp Probe and Aux Pitot

(Sec 3.010 p 13)