ATPL: In accordance with EU-OPS, 100 % of the passengers in a non-pressurized airplane must have an oxygen supply reserve for the entire flight time at pressure altitudes greater than:
Domanda 646, Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license
| 10000 Ft. |
| 14000 ft. |
| 13000 ft. |
| 15000 Ft. |
