TD 21

Question 1

Approved oxygen sensors will be used as follows:
Unpressurized aircraft. Oxygen will be used by aircraft crews and occupants for flights, as shown below:

Aircraft crews
On flights above ____ pressure altitude for more than _____.
On flights above ____ pressure altitude for more than ____.
Aircraft crews and all other occupants:
On flights ____ pressure altitude for _____.

Answer 1

10,000 feet, 1 hour
12,000 feet, 30 mins
14,000 feet, any period of time

Question 2

LAND IMMEDIATELY

Answer 2

The urgency of landing is paramount. Primary considerations is to assure survival of the occupants. Landing in water, trees, or other unsafe areas should be considered only as a last resort

Question 3

LAND AS SOON AS POSSIBLE

Answer 3

Land without delay at the nearest adequate site (i .e. open field) at which a safe approach and landing can be made

Question 4

LAND AS SOON AS PRACTICABLE

Answer 4

The landing site and duration of flight are at the discretion of the pilot. Extended flight beyond the nearest approved landing area where appropriate assistance can be expected is not recommended

Question 5

A caution indication on the CAD Two yellow master caution lights on the instrument panel indicate:

Answer 5

malfunction or failure conditions which do not require immediate crew action but the possible need for future corrective action

Question 6

A red warning light on the warning panel coming on together with a gong signal or dedicated audio signal indicates:

Answer 6

an emergency condition requiring immediate corrective action