Ice And Rain Protection

Question 1

How is anti-icing provided to the aircraft?

Answer 1

• Bleed air
• Electrical heating

Question 2

Which components of the aircraft have anti-icing?

Answer 2

• 3 outboard wing slats (bleed)
• leading edge of engine nacelles (bleed)
• pitot tubes (electrical)
• Static ports (electrical)
• waste water drain masts (electrical)
• Flight deck windows (electrical)

Question 3

When do icing conditions exist?

Answer 3

• OAT is 10°C or below
• Visible moisture is present

Question 4

Can wing anti-ice be used with slats extend it?

Answer 4

Yes, but should be avoided

Question 5

How is window heating controlled?

Answer 5

With the two window heat computers (WHC)

Question 6

When are the windows heated?

Answer 6

• Automatically on the ground with one engine running
• in-flight
• When the probe/window heat pb is pushed

Question 7

What is the limitation for using the windshield wipers?

Answer 7

• 230 kts
• Do not use on dry window

Question 8

What’s a limitation exists for the rain repellent?

Answer 8

• Do not use on dry window
• use only on moderate to heavy rain conditions

Question 9

How is probe heating controlled?

Answer 9

Probe heat computer (1/2/3)

Question 10

When are the probes heated?

Answer 10

• On the ground with one engine running
• in-flight
• when probe/window heat pb is on