Bleed Air

Question 1

What happens if you move the WING A/I CROSS BLEED switch from the normal position to FROM LEFT or FROM RIGHT.

Answer 1

Wing A/I closes, X bleed Valve opens and both wing A/I are fed by indicated engine

Question 2

If you select the BLEED VALVES switch light from AUTO to CLSD which valves will close?

Answer 2

Engine PSROV

APU LCV

Question 3

If you want to use the APU as your primary bleed source, how would you do that?

Answer 3

Right to left,
Bleed source: APU,
ISOL open
bleed valves MANUAL