Pneumatic Flashcards
1
Q
What functions does the pneumatic system serve?
A
air stair door seal ice protection bleed-air warning system rudder boost hourmeter
negative pressure for vacuum system
2
Q
Describe the pneumatic system:
A
P3 airflow (little P3)
Air valves are NO
18 psi
5.3” vacuum
3
Q
Engine start:
A
Both BL AIR Fail lights extinguish during first engine start.
Bleed air valves need to be in the ENVIR OFF position for engine start
4
Q
Are the instrument air valves normally open?
A
Yes
5
Q
What is the purpose of EVA tubing?
A
Bleed air warning system uses EVA tubes to sense leaking pneumatic air
