Definition
Reactive maintenance describes work triggered by an unplanned event (a breakdown, alarm, or operator complaint) rather than a scheduled inspection or condition-monitoring finding. It is defined by its trigger: a response after the fact, whereas corrective maintenance describes the type of work (fixing an identified fault) regardless of how it was found.
Key facts
- Defined by its trigger: an unplanned event (breakdown, alarm, complaint) rather than a scheduled finding.
- Typically unplanned and unscheduled by nature, which can strain resources and spare-parts availability.
- Overlaps with corrective maintenance when the reactive trigger reveals a fault that is then fixed, but reactive emphasizes the trigger, corrective the work type.
- A high share of reactive work relative to planned work is commonly tracked as a maintenance-organization health indicator (emergency work percentage).
Why does Reactive maintenance matter in maintenance?
Reactive maintenance means maintenance work begins because something has already gone wrong and forced attention (an alarm, a breakdown, an operator report) rather than because a planned inspection or monitoring program flagged a developing issue in advance.
How do maintenance teams apply Reactive maintenance?
Corrective maintenance describes the nature of the work (fixing an identified fault) and can follow either a planned finding or a reactive trigger. Reactive maintenance specifically describes the reactive trigger itself. Run-to-failure differs further: it is a deliberate strategic choice to let an asset run until failure for low-criticality equipment, not simply the absence of planning.
FAQ
Frequently asked questions
What does it mean to only respond after a fault has occurred?
It means maintenance work is reactive: triggered by an unplanned event such as a breakdown or alarm rather than a scheduled inspection, which is why organizations track the share of reactive versus planned work as a health indicator.
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