31. VENTILATION Panel

Question 1

With BLOWER and EXTRACT PBs in AUTO how does the system typically operate?

Answer 1

o Ground – system is in OPEN configuration
o Flight – system is in CLOSED configuration
o Intermediate – Closed, except Extract Valve is partially open

Question 2

With both BLOWER and EXTRACT PBs in OVRD, what are the positions of the INLET and EXTRACT valves?

Answer 2

Smoke Configuration:
 INLET valve CLOSED
 EXTRACT valve OPEN

Question 3

What fan is OFF in the above situation?

Answer 3

o BLOWER fan OFF

o EXTRACT fan ON

Question 4

Is Air Conditioning ever introduced into the Avionics Compartment?

Answer 4

Yes – In the SMOKE configuration or Abnormal configuration

Question 5

What does a FAULT light on the BLOWER pb indicate?

Answer 5

o SMOKE Warning is activated
o Computer failure
o Low Blower pressure
o Duct overheat

Question 6

What does a FAULT light on the EXTRACT pb indicate?

Answer 6

o SMOKE Warning is activated
o Computer failure
o Low Extract pressure

Question 7

With 2 FAULT lights on the VENTILATION panel are there any other indications?

Answer 7

Yes – The SMOKE light in the GEN 1 LINE pb