Maintenance, Repair and Operations
Overview
Machine
A machine manages power to accomplish a task, examples include, a mechanical system, a computing system, an electronic system, and a molecular machine. In common usage, the meaning is that of a device having parts that perform or assist in performing any type of work...
or electrical device
Machine
A machine manages power to accomplish a task, examples include, a mechanical system, a computing system, an electronic system, and a molecular machine. In common usage, the meaning is that of a device having parts that perform or assist in performing any type of work...
should it become out of order or broken (known as repair, unscheduled or casualty maintenance). It also includes performing routine actions which keep the device in working order (known as scheduled maintenance
Aircraft maintenance
Aircraft maintenance is the overhaul, repair, inspection or modification of an aircraft or aircraft component.Maintenance includes the installation or removal of a component from an aircraft or aircraft subassembly, but does not include:...
) or prevent trouble from arising (preventive maintenance
Preventive maintenance
Preventive maintenance has the following meanings:#The care and servicing by personnel for the purpose of maintaining equipment and facilities in satisfactory operating condition by providing for systematic inspection, detection, and correction of incipient failures either before they occur or...
). MRO may be defined as, "All actions which have the objective of retaining or restoring an item in or to a state in which it can perform its required function.
