maintenance down time

maintenance down time (MDT)

tie down / tie-down

cargo tie-down / freight tie-down

freight tie-down / cargo tie-down

mean down time (MDT) (logistics)

down time

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 at short-time parking

zone standard time (zone time) (ZST)

time to climb / climb time

time-gain control / gain time control

real time kinematic / real-time kinematic (RTK)

takeoff time (T time)

cut down military expenditures

down

down grade (adv)

down the wind

down-hole hammer

hull down

jump-down satellite

lay down arms

resistance, to break (down) resistance

shoot down

splash down

top-attack (top attack; top-down attack )