TD-21

Question 1

Approved oxygen systems will be used as follows:

a. Unpressurized aircraft. Oxygen will be used by aircraft crews and occupants for flights, as shown below
(1) Aircraft crews
a. On flights above ________ pressure altitude for more than ______.
b. On flights above ________ pressure altitude for more than _________.

(2) Aircraft crews and all other occupants.
a. On flights ______________ pressure altitude for _________________.

Answer 1

10. 000’ / 1 hour
11. 000’ / 30 min

Above 14.000’ / any period of time

Question 3

LAND IMMEDIATELY

Answer 3

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

Question 4

LAND AS SOON AS POSSIBLE

Answer 4

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

Question 5

LAND AS SOON AS PRACTICABLE

Answer 5

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 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.

Question 7

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

Answer 7

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