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Gulfstream G550 > Pneumatics > Flashcards

Flashcards in Pneumatics Deck (8)
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1
Q

An external air connection enters through the right side of the bleed manifold. How is it introduced into the left manifold?

A

By opening the ISOLATION VALVE

2
Q

What is the corrective action for a red “L PYLON HOT” CAS message?

A

Turn off left engine bleed air switch and the left air conditioning pack switch

3
Q

What is the corrective action for a red “AFT EQUIP HOT” CAS message?

A

Determine which side has a possible bleed air leak (high TGT & fuel flow), and turn off the affected engine bleed air switch and air conditioning pack switch

4
Q

What are the minimum pressure and temperature set points of the bleed air system?

A

Normal - 14 psi
Low power settings - 22 psi
Single Pack Ops - 35 psi
Wing A/I ON - 620 F

5
Q

How is the bleed air panel configured for a bleeds-off takeoff?

A

L&R Engine bleed air switches - IN & OFF

APU bleed air switch - IN & ON

6
Q

Other than selecting the isolation valve switch to OPEN, what other switch selections will automatically open the isolation valve?

A

Selecting START MASTER or CRANK MASTER

APU BLEED AIR (on ground)

7
Q

What is the function of the RAM AIR switch?

A

Turns OFF both air conditioning packs, and allows ambient air into the cabin when the pressure vessel completely depressurizes

8
Q

Will the auto throttles be inhibited if the isolation valve is OPEN?

A

No, auto-throttles operate normally regardless of the isolation valve position