Oxygen

Question 1

how many oxygen systems?

Answer 1

2 - flight crew and pax O2 system

Question 2

FAR requirements for crew oxygen in a pressurized cabin for Part 91 and Part 135

Answer 2

Part 91:
- Above FL350? Single pilot must wear mask.
- At or below FL 410? If multi-crew and both @ seats - masks not required.

Part 135:
- Above FL 250? One crew must be on oxygen if other crew member leaves seat.
- Above FL 350? One of two crew must be on mask.

Question 3

where can the minimum dispatch pressures for O2 be found?

Answer 3

in the POH (section 6)

Question 4

where is oxygen fill port?

Answer 4

forward baggage compartment

Question 5

what does the push / pull handle open and close?

Answer 5

the valve at the oxygen cylinder

Question 6

what does “EMER” mode on the crew oxygen masks provide?

Answer 6

non-diluted oxygen at positive pressure

Question 7

with oxygen supply control knob in PAX AUTO, when will the masks automatically deploy?

Answer 7

at a cabin altitude of 14,700 +/- 300 feet