VENTILATION Panel

Question 1

BLOWER pb - Fault light (Amber)

Answer 1

Air pressure low*
Computer Fault*
Smoke
Overheat*

*horn sounds if on ground and no engines running

Question 2

BLOWER pb - OVRD (White)

Answer 2

Goes to closed configuration (inlet & extract values close)
Air conditioning air added
Blower fan stops

Question 3

BLOWER & EXTRACT pb - Both AUTO

Answer 3

On ground

• prior to takeoff, OPEN config
• after takeoff power, CLOSED config

*May be in Closed config prior to takeoff power if skin temp is too cold

Question 4

EXTRACT pb - Fault light (Amber)

Answer 4

Air pressure low*
Computer fault
Smoke

*Horn sounds if on the ground and no engines running

Question 5

EXTRACT pb - OVRD (White)

Answer 5

Goes to Closed config (inlet & extract value closes)

Air conditioning air added

Question 6

CAB FANS pb - Off

Answer 6

Turns off cabin fans

Question 7

NOTE: if both blower and extract pb to OVRD

Answer 7

Intermediate Config
Air conditioning air added
Blower Fan Stops