aircraft maintenance section

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

maintenance section

company maintenance section

truck maintenance section

carrier maintenance section

radar maintenance section

echoing cross-section; echoing cross section

section of control surface section

radar cross-section / radar cross section (RCS); radar signature; radar crossover

aircraft maintenance company (AMCO)

aircraft maintenance and repair

aircraft maintenance

aircraft maintenance inspector

aircraft maintenance service

general aircraft maintenance

aircraft maintenance detachment

aircraft maintenance officer

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