on-condition maintenance

material condition / physical condition

physical condition / material condition

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

alert condition (LERTCON)

combat readiness condition

condition of arms

decisive condition (DC)

defense readiness condition (DEFCON)

force protection condition (FPCON)

moral and psychological condition

readiness condition (REDCON)

soil condition

watch condition (WATCHCON)

flyaway condition

degraded condition

in a degraded condition

condition one

keep a tank in serviceable condition

accident condition

crew physical condition

kinematical boundary condition

airworthy condition

condition

condition of continuity

faulty condition