Corrective Maintenance

Planned repair work that fixes a known defect found during an inspection or PM — before it becomes a breakdown.

Definition

Corrective maintenance is work that restores a failed or failing asset to working order. Crucially, in modern usage it usually refers to planned corrective work: a technician spots a worn belt, a small leak, or an out-of-spec reading during an inspection or preventive task, raises a work order, and the fix is scheduled before the asset actually breaks down.

Corrective vs reactive maintenance

The terms are often confused. Reactive (breakdown) maintenance happens after an unexpected failure, under time pressure. Corrective maintenance is the planned cousin: the defect is known, parts and labor are organized, and the work is scheduled into the normal flow. Both fix a problem, but corrective work is calm and cheap where reactive work is chaotic and expensive.

Where corrective maintenance comes from

Most corrective work is generated by other maintenance activity. A preventive task or inspection surfaces a defect that is not yet a failure — this is exactly why inspections pay off. The finding becomes a corrective work order, ideally linked to the same asset so its history shows the full chain from detection to repair.

Tracking corrective maintenance well

Tag corrective work orders distinctly from preventive and reactive so reporting stays honest. A healthy program shows preventive inspections feeding a steady stream of planned corrective fixes, with reactive breakdowns shrinking over time. If corrective work is rare and reactive work is high, your inspections are probably not catching defects early enough.

Is corrective maintenance planned or unplanned?

Modern usage treats it as planned: the defect is already known (found during a PM or inspection) and the repair is scheduled, unlike a reactive breakdown.

What triggers corrective maintenance?

Usually a preventive task or inspection that finds a developing fault — a worn part, a leak, an out-of-tolerance reading — which becomes a scheduled corrective work order.