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distress phase stresses
avia.	стадия бедствия (в полёте)
mil., avia.	стадия бедствия
English thesaurus
distress phase
avia., avia., ICAO	A situation wherein there is reasonable certainty that an aircraft and its occupants are threatened by grave and imminent danger or require immediate assistance
avia., Canada	A phase that begins when a the fuel on board is considered to be exhausted or to be insufficient to enable the aircraft to land safely; b information is received that indicates that the operating efficiency of the aircraft has been impaired to the extent that a forced landing is likely; or c information is received that the aircraft is about to make, or has made, a forced landing