257 - ATPL - In accordance with Air OPS, 10 % of the passengers in a non-pressurised aircraft shall be supplied with supplemental oxygen for the entire flight time after 30 minutes at pressure altitudes greater than:
Question 257 - Operational Procedures - ATPL - Airline Transport Pilot license
14000 ft but not exceeding 15000 ft.
10000 ft but not exceeding 13000 ft.
10000 ft but not exceeding 14000 ft.
10000 ft but not exceeding 15000 ft.
Training tests and timed exam simulations ATPL - Airline Transport Pilot license
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