Ice and Rain Protection

Question 1

What is the source of heating for wing and cowl anti-ice

Answer 1

6th or 10th stage bleed air

Question 2

When is cowl anti-ice required to be ON during ground operations

Answer 2

OAT ≤ 10°C in visible moisture (fog with visibility 1 sm or less, rain, snow, sleet, ice crystals)

OAT ≤ 10°C on contaminated ramps, taxiways or runways

Question 3

When is cowl anti-ice required to be ON during flight

Answer 3

TAT ≤ 10°C in visible moisture (such as clouds, rain, snow, sleet, or ice crystals)
(except when SAT is ≤ -40°C),
or when ICE is annunciated

Question 4

When is wing anti-ice required to be ON during ground operations

Answer 4

OAT ≤ 5°C in visible moisture (fog with visibility 1sm or less, rain, snow, sleet, ice crystals),

OAT ≤ 5°C on contaminated runways.

If Type II, Type III or Type IV deicing fluid has been applied, select wing anti-ice ON just prior to thrust increase for takeoff.

Question 5

When is wing anti-ice required to be ON during flight operations

Answer 5

TAT ≤ 10° C in visible moisture
(such as clouds, rain, snow, sleet, or ice crystals)
with airspeed < 230 KIAS except when SAT is ≤ -40° C,
or when ICE is annunciated

Question 6

What is a good ICE detector test indication

Answer 6

ICE caution message, the ICE switch light illuminated,

ADS HEAT TEST OK advisory message.

Question 7

What is the purpose of the Wing A/I cross-bleed switch

Answer 7

To allow the bleed air from one engine to anti-ice the opposite wing

Question 8

What occurs with the Windshield Heat on LOW

Answer 8

All 4 panels are heated to 24°C

Question 9

What occurs with the Windshield Heat on HIGH

Answer 9

Side windows are heated to 24°C and both windshields are heated to 41°C