airframe and engine maintenance

airframe and engine technician

maintenance idling (periodic running of engine for maintenance purposes)

airframe and power plant technician

airframe and power plants

specialist areas (airframe and power plants; avionics; hydraulics; electrical systems)

depot maintenance (beyond O and I level activities, performed in an industrial-type facility) / D-level maintenance

engine capacity / engine power, engine output

airframe

airframe fatigue

fatigue test airframe

major airframe fatigue test

airframe failure

airframe flying hours

airframe hole

airframe repair / patch repair

patch repair / airframe repair

total airframe flying hours

airframe life

contingency maintenance / special maintenance

maintenance checks / routine maintenance, scheduled tasks

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

observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)

engine maintenance

reaction engine / motor (jet engine)

rotary engine (Wankel engine)

engine ground run / engine test

engine oil reservoir / engine oil tank

communications and control systems maintenance

development and maintenance of morale