OXYGEN LIMITATIONS QUESTIONS

Question 1

What is the minimum oxygen required for a particular flight and flight crew?

Answer 1

As specified on the tables in LIM Chapter

Question 2

Following a loss of cabin pressure, the minimum oxygen required for a particular flight and flight crew, assumes the mask regulator is in what position?

Answer 2

The assumption is that the mask regulator is in the NORMAL (diluted oxygen) position.
Note: Based on the use of a sealed mask, may be shorter for bearded crew (in terms of performance, pressure, or duration).

Question 3

For what duration are all crew members protected by the oxygen system in the event of smoke with 100% Oxygen selected?

Answer 3

It provides protection for 15 min at 8000 ft. cabin altitude.
Note: The above times which are based on the use of a sealed mask, may be shorter for bearded crew (in terms of performance, pressure, or duration).