maintenance recorder

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

embedded data recorder

digital automatic transducer and recorder

laser recorder unit (LRU)

course recorder

crash protected recorder

crash recorder

multichannel recorder

voice recorder system

recorder

wire recorder

data recorder

tape recorder

aircraft recorder

analogue data recorder

digital flight data recorder system

digital flight recorder

flight data recorder system

flight recorder

flight recorder recording

input recorder

protected on-board recorder unit

satellite recorder

single-channel recorder

sound recorder