Oxygen

Question 1

What are the oxygen requirements for unpressurized aircraft?

Answer 1

1) If flight is conducted for more than 30 min between 10 000ASL and 13 000ASL:

• oxygen for all crew and 10% of pax, and no less than one pax.

2) Entire duration of flight above 13 000ASL:

• oxygen for everyone on board

Question 2

What must the crew at the controls wear if the flight is conducted above FL410?

Answer 2

Oxygen Masks

Question 3

In a pressurised aircraft when do you need oxygen for all crew members and 10% of passengers?

Answer 3

1) Entire period of flight that exceeds 30 min at CPAs between 10 000 ASL and 13 000 ASL.
2) Entire period of flight at CPAs above 13000ASL
3) For air trasnport service under 1 and 2 conditions:
- a period of flight not less than 30 min and
- for crew members, 2 hours

Question 4

The pilot at the controls shall use an oxygen mask if:

Answer 4

1) The AC is being operated at or above FL250 and is not equipped with quick-donning masks.

2) The AC is operated above FL410, even if it is equipped with quick-donning masks.

Question 5

How is a 406 Mhz ELT to be tested?

Answer 5

Only in accordance with the manufacturer