A signal sent by radiotelephony consisting of the spoken word MAYDAY MAYDAY MAYDAY means:
Domanda 57, IFR Communications - ATPL - Airline Transport Pilot license
| The aircraft has a very urgent message to transmit concerning the safety of a ship, aircraft or vehicle |
| The aircraft has a message to transmit concerning adverse weather conditions along its route of flight |
| Imminent danger threatens the aircraft and immediate assistance is required |
| The aircraft is forced to perform a fuel dumping procedure |
