midair collision accident

midair collision control

midair collision hazard

midair collision risk

refuel in midair

aircraft accident (flight accident; aircraft mishap)

aircraft accident / flight accident, aircraft mishap

aircraft mishap / flight accident, aircraft accident

flight accident / aircraft accident, aircraft mishap

aircraft accident; flight accident

airborne collision avoidance system (ACAS)

collision regulations (COLREGS)

lead collision course

traffic collision avoidance system (TCAS)

collision avoidance system-equipped aircraft

near collision

unavoidable collision

aerial collision

air collision

airborne collision avoidance system

approach lights collision

avert collision

avoid collision

bird collision

mid-air collision

near mid-air collision

head-on collision

cloud and collision warning radar

collision

collision course interception

collision point

collision сourse attack

collision сourse homing