ATPL: On a pressurised aeroplane, supplemental oxygen is used to:
Domanda 183, Operational Procedures - ATPL - Airline Transport Pilot license
| Provide with oxygen passengers who might require it, following a cabin depressurisation |
| Protect an aircrew who fights a fire |
| Assist a passenger with breathing disorders |
| Provide people on board with oxygen during a cabin depressurisation |
