check flight maintenance

spot check (spot- check)

maintenance check

line maintenance check

maintenance A check

periodic maintenance check

flight check

check flight

check(-out) flight

check-out flight

functional check flight (after repair)

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

in-flight maintenance

maintenance by flight hours

flight restriction zone / flight restricted zone (FRZ)

check sweeping

function check

radio check

routine check

security check

vehicle check-point

fleet operational readiness accuracy check sites (FORACS)

loalty check

NATO Naval Forces Sensors and Weapons Accuracy Check Sites

pre-combat check (PCC)

pre-execution check (inspection)