Pitot Static system

Question 1

What processes the pitot static system pressure and provides information to the cockpit?

Answer 1

ADC computer

Question 2

In the event of a frozen LH pitot tube what would be the indications?

Answer 2

The left side ADC would read zero resulting in the copilot’s airspeed indicator becoming inoperative. During the decay process as the airspeed spread increases, an IAS miscompare would illuminate within both airspeed indicators.

Question 3

Under what circumstances would you see a TRN PIT HEAT OFF caution light illuminate?

Answer 3

1. Aircraft on the ground (WOW switch)
2. NR below 80%
3. At least one of the three Pitot heat switches are on

Question 4

Under what circumstances would you see a TRN PIT HEAT ON caution light illuminate?

Answer 4

1. OAT is less than 5°C
2. All three pitot heat switches are not on