Chapter 8.8 O2

Question 0

When would you don you O2 mask?

Answer 0

Depressurization and cabin alt about 10,000ft

Any time you have Smoke or Fumes

8.8
The flight crew must use oxygen whenever the cabin altitude is above 10,000 ft.

For the use of oxygen in case of emergencies such as fire or decompression, refer to FCOM.

Question 1

What are the requirement for use of quick dining masks?

ie what must you do if the crew O2 system becomes inop during flight

Answer 1

A pressurised flight may be operated up to FL250 if the crew oxygen system becomes inoperative/empty, provided portable oxygen bottles are readily available for each flight crew member on duty.

Above FL250 the quick donning crew oxygen system must be fully serviceable. All flight crew members on duty shall have their oxygen mask available for use should the necessity arise.

Question 2

When are pax required to use O2 masks?

Answer 2

Depressurization only (they are not designed for smoke or fumes)

8.8

8.8.3.1 Use of Passenger Oxygen in Flight
Passengers must use oxygen when cabin altitude is above 15,000 ft.

Question 3

What tech log entries are required for O2 usage?

Answer 3

Any time cockpit or cabin O2 is used

Or

First aid O2 is used.