ATA 30 Ice And Rain Protection

Question 1

What is the temperature span on the windshield heating?

Answer 1

30-35 degrees Celsius

Question 2

What is the side window heating temperature in NORMAL position?

Answer 2

45-50 degrees Celsius

Question 3

What is the side window heating temperature in HIGH position?

Answer 3

60-65 degrees Celsius

Question 4

When will the wiper electric motor be de-energised?

Answer 4

At 140 degrees Celsius

Question 5

How many thermistors are bonded to the lower leading edge of the fwd inlet?

Answer 5

5 but only 3 are used and 2 are spares

Question 6

When is heating of total temp probe activated?

Answer 6

After NLG is locked up and weight off wheels

Question 7

Where are the current sensors located?

Answer 7

In each LH/RH electrical centre

Question 8

To which pressure does the relief valve regulate the bleed air before supplying it to the boots?

Answer 8

18 or 21 psi depending on mod-status

Question 9

Where is the air distribution valve located?

Answer 9

In the electrical compartment (nacelle)

Question 10

At what temperature does the overheat sensor/switch in the de-ice supply line close?

Answer 10

At 149 degrees Celsius

Question 11

What prevents the boot from inflating uncontrolled?

Answer 11

The air ejector (jet pump)

Question 12

Why is the distribution valves dual?

Answer 12

Because it supplies outboard and inboard boots separately

Question 13

Max temp wiper motor?

Answer 13

140 degrees Celsius