in-service aircraft

branch (military/service branch, armed service)

separate from active service / the service

Y service (Y-service) / Y-station

regional meteorological service/ regional weather service (RWS)

emergency service / emergency operations service

aircraft maintenance service

Tri-Service aircraft designation system

service aircraft

aircraft control and warning service

carrier aircraft service unit

training aircraft (tng acft) / trainer aircraft

aircraft accident (flight accident; aircraft mishap)

aircraft armaments / aircraft weapons

aircraft accident / flight accident, aircraft mishap

aircraft mishap / flight accident, aircraft accident

aircraft modernization / aircraft upgrade

aircraft track and balance (adjusting balance of aircraft)

aircraft upgrade / aircraft modernization

aircraft weapons / aircraft armaments

flight accident / aircraft accident, aircraft mishap

low flying aircraft / low-flying aircraft

anti-aircraft artillery observation aircraft

active military service

active service/ duty

administrative service

aerodrome control service

age limit for military service

air traffic control service

air traffic service (ATS)

air weather service detachment

airfield service detachment

alternative community service