aircraft maintenance

contingency maintenance / special maintenance

depot maintenance (beyond O and I level activities, performed in an industrial-type facility) / D-level maintenance

maintenance checks / routine maintenance, scheduled tasks

maintenance idling (periodic running of engine for maintenance purposes)

organizational maintenance (O-level) (day-to-day work that standard airfield maintenance groups perform in support of airfield operations)

routine maintenance / scheduled tasks, maintenance checks

scheduled tasks / routine maintenance, maintenance checks

special maintenance / contingency maintenance

aircraft maintenance company (AMCO)

aircraft maintenance and repair

aircraft maintenance inspector

aircraft maintenance service

general aircraft maintenance

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

base maintenance

battalion maintenance platoon

communications and control systems maintenance

crew (preventive) maintenance

depot maintenance

Depot Maintenance Actions Working Group (DMAWG)

development and maintenance of morale