Planned Maintenance

PLANNED MAINTENANCE. Preventive, or seasonal maintenance activities performed prior to structure, system, and component failure which may be initiated by predictive or periodic maintenance results, through vendor recommendations, or by experience/lessons learned.
These include actions such as scheduled cold weather protection, valve repacking, replacement of bearings as indicated from vibration analysis, major or minor overhauls based on experience factors, or vendor recommendations and replacement of known life-span components. For example, repacking a valve due to packing leakage would be corrective maintenance, but scheduled repacking prior to leakage would be planned maintenance. SOURCE: The Department Of Energy

Planned Maintenance is proactive.

Planned Maintenance
Maintenance in Action