maintenance holding area

район технічного обслуговування

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

authorized holding (logistics)

expand a holding

holding anchorage

holding battalion

holding bulkhead

holding the breath

holding warfare

assembly holding stand

belt-holding pawl

belt-holding pawl bracket

incompatible with holding security clearance

zone reserved for holding pattern

holding fixture