Anti-Ice, Rain

Question 1

Probe Heat on STBY Power

Answer 1

-Only Captain’s work
-Lights does not indicate system status

Question 2

PROBE HEAT AUTO

Answer 2

Turns ON automatically after engine start

Question 3

COWL ANTI-ICE Light

Answer 3

-Overpressure after valve
-Reducing N1 helps

Question 4

ENG ANTI-ICE Lights

Answer 4

-Anti-ice inhibited due to system failure or,
-Core anti-ice valve fails to close

Question 5

COWL VALVE Lights

Answer 5

-Steady (Bright) means disagreement with switch and valve
-Increasing N1 helps

Question 6

Wing Anti-ice Switch on the Ground

Answer 6

-Valve open when temperature and Thrust Lever Angle below limit
-Does not trip only lights illuminates when above limits
-Trips OFF at lift off

Question 7

Flight Deck Windows and Heating

Answer 7

-Heated 1 / 2: Glass panes seperated by vinyl core
-3: Acrylic Panes seperated by air space
-Conductive coating on outer panes provides electrical heating

Question 8

Wing Anti-ice Operation

Answer 8

-3 Inboard Slats
-AC operated

Question 9

Wing Anti-ice Prohibited When

Answer 9

-Above 35000ft
-When used TYPE II or IV

Question 10

Icing Conditions

Answer 10

-Yerde OAT havada TAT <=10 degrees and,
-Visibility <1600m or,
-Precipitation or,
-Surface condition other than Damp and Dry

Question 11

Ice Crystal Icing

Answer 11

-Hissing sound
-Water particles at high altitudes
-TAT around 0 degrees
-CB activity below
-St. Elmos Fire

Question 12

Stall Warning Logic for Anti-ice Usage

Answer 12

-When using Engine anti-ice or wing anti-ice used anytime
-Stick shaker and minimum maneuvering speeds adjusted
-Vref value does not reflect the change