аварійні повітряні перевезення
distress alert; distress call
distress signal (=SOS)
Global Maritime Distress Safety System (GMDSS)
ship in distress
suffer distress
distress
distress call
distress landing
distress message
distress phase
distress signal
in distress
international distress frequency
distress beacon
distress signals
Space System for Tracking Ships and Aircraft in Distress – Search and Rescue Satellite (COSPAS-SARSAT)
radio distress call
air traffic clearance
air traffic control centre
air traffic control operator
air traffic control procedures
air traffic control radar
air traffic control service
air traffic flow management (ATFM)
air traffic management (ATM)
air traffic management centre (ATMC)
air traffic service (ATS)
air traffic signalling system
airspace and traffic management
communications traffic
division traffic control headquarters
International Traffic in Arms Regulations (ITAR)