maintenance instruction

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

Chairman of the Joint Chiefs of Staff Instruction (CJCSI)

Department of Defense Instruction (DODI)

exercise instruction

formal instruction

letter of instruction

package instruction

preliminary rifle instruction (PRI)

signal operation instruction

tactical instruction

combat instruction

instruction pamphlet / instructional pamphlet

academic classes that provide instruction on counterintelligence

driver's instruction

flight instruction

instruction plate

taxiing instruction

foundational classroom instruction

instruction unit

instruction

job classification instruction training

job instruction training

joint air-ground instruction team

night firing instruction

night instruction (training)