ATPL: In accordance with EASA-OPS, 100 % of the passengers in a non-pressurised aircraft shall be supplied with supplemental oxygen for the entire flight time at pressure altitudes above:
Question 231, Operational Procedures - ATPL - Airline Transport Pilot license
Explanation: In accordance with EASA-OPS, 100 % of the passengers in a non-pressurised aircraft shall be supplied with supplemental oxygen for the entire flight time at pressure altitudes above: