BBD-700 Ice & Rain

Question 1

When is cowl anti-ice, required? Prohibited?

Answer 1

OAT +10 C and visible moisture or contaminated taxiways / runways
AUTO prohibited for Takeoff

Question 2

When is wing anti-ice required? Prohibited?

Answer 2

OAT +5 C and visible moisture or contaminated taxiways / runways
AUTO prohibited for takeoff
Type II or IV, anti-ice prohibited ON until just prior to thrust increase for takeoff

Question 3

What are the conditions for in-flight icing operations?

Answer 3

Visible moisture and temperature between TAT +10 and SAT -40 C

Question 4

What is the operating limitation while holding in icing conditions?

Answer 4

Do not hold with slats extended

Question 5

What is the minimum engine speed while in icing conditions?

Answer 5

76% N2

Question 6

Fully automatic ice and rain protection is provided for which systems?

Answer 6

Wing leading edges
Engine cowls
Windshields
Side windows
Air data probes and sensors

Question 7

Due to the sensitivity of the ice detector probes, the ice detection is ineffective below what airspeed?

Answer 7

30 knots IAS

Question 8

When wing anti-ice is selected, how long may it take before the leading edges display green?

Answer 8

Approximately 2 minutes

Question 9

What is the purpose of the wing cross bleed valve (CBW)?

Answer 9

Allows both wing anti-ice systems to be fed from a single engine

Question 10

Which engine bleed is used for cowl

anti-ice?

Answer 10

Low pressure bleed air only

Question 11

In the event of electrical failure, the cowl anti-ice valve (CAIV) defaults to what position?

Answer 11

Fully open

Question 12

Why is it recommended to remove all pitot and AOA covers prior to starting the APU or connecting external power?

Answer 12

All heaters are tested ON when AC power is applied to the aircraft