B777 Air Systems

Boeing 777 Air Systems

Boeing 777 Air Systems Revised 10/7/24

1 / 15

Why does the flight deck receive air from the left pack at a higher pressure than the passenger cabin?

2 / 15

During preflight, what position should the FWD and AFT OUTFLOW VALVE switches and LDG ALT selector be in?

3 / 15

What landing altitude is displayed on the EICAS pressurization system indications when the airplane has traveled more than 400 miles or has passed the halfway point?c

4 / 15

What does a PACK MODE R EICAS message indicate?

5 / 15

What is the normal position of the aft outflow valve after landing?

6 / 15

What does the PACK MODE R EICAS message indicate?

7 / 15

Why should you minimize flight time at low altitude when the EQUIP COOLING OVRD message is displayed?

8 / 15

Which system(s) supply trim air to the flight deck?

9 / 15

Which trim air valve can be moved directly by the flight crew, and how is it monitored?

10 / 15

During preflight, what position should the FWD and AFT OUTFLOW VALVE switches and LDG ALT selector be in?

11 / 15

What happens when you select the FWR CARGO A/C control to AUTO?

12 / 15

If a pack overheats or fails the pack shuts down and an air conditioning may be needed.

13 / 15

Which of the followings are bleed air sources?

14 / 15

How are zone target temperatures selected, and what is the temperature range?

15 / 15

How does the trim air system meet zone temperature requirements?

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