Corrective maintenance can be defined as a maintenance WORK that is carried out to identify, isolate, and rectify a fault and get back to the operational condition. It involves the maintenance of failed equipment, machine, or asset that can be restored for in-service operations.

Preventive maintenance can be the care and service provided to the equipment by qualified personnel through systematic inspection, detection, and CORRECTION of INCIPIENT failures either before they occur or before they develop into major defects. It involves tests, MEASUREMENTS, adjustments, and parts replacement, performed specifically to prevent faults from OCCURRING.

Corrective maintenance can be defined as a maintenance work that is carried out to identify, isolate, and rectify a fault and get back to the operational condition. It involves the maintenance of failed equipment, machine, or asset that can be restored for in-service operations.

Preventive maintenance can be the care and service provided to the equipment by qualified personnel through systematic inspection, detection, and correction of incipient failures either before they occur or before they develop into major defects. It involves tests, measurements, adjustments, and parts replacement, performed specifically to prevent faults from occurring.