Oxygen

Question 1

1138
If an unpressurized aircraft is operated above 13,000 feet MSL for a period of 2 hours 20 minutes, how long during that time is the minimum flight crew required to use supplemental oxygen?

Answer 1

1 hour 50 minutes.

Question 2

1142
What is the maximum IFR altitude you may fly in an unpressurized aircraft without providing without providing passengers with supplemental oxygen?

Answer 2

15,000 feet.

Pass 15

Question 3

1146
(Refer to Figure 91.) What are the oxygen requirements for an IFR flight eastbound on V520 from DBS VORTAC in an unpressurized aircraft at the MEA? [Please read the explanation]

Answer 3

The required minimum crew must be provided and use supplemental oxygen during the whole flight

91 Rodman required the whole flight
Shortest answer

Question 4

2545
What are the oxygen requirements for an pressurized aircraft at 15,000 feet?

Answer 4

The crew must use oxygen for the entire time above 14,000 feet.

15 14 Crew

Question 5

2470
When acting as PIC, what is the maximum cabin pressure altitude at which a pilot can fly for over 30 minutes without using supplemental oxygen?

Answer 5

12,500 feet.

Pilot 12.5

Question 6

2843
When flying in an unpressurized aircraft at 16,000 feet MSL, what are the oxygen requirements?

Answer 6

Above 14,000 feet, the required minimum flight crew must use supplemental oxygen.

16 14 Crew

Question 7

1145
(Refer to figure 89.) in an IFR flight eastbound in an unpressured aircraft from Milford on V244 at the lowest appropriate altitude

Answer 7

The pilot, and supplemental oxygen must be available to all passengers for operation above 15,000 feet.

PSA 15