Definition
Corrective maintenance is work performed to restore a known, already-identified fault to a functioning state. It can be planned (scheduled after a fault is found but before it causes further damage) or unplanned, if the fault forces an immediate stop, which distinguishes it from run-to-failure, where continuing to operate until failure is a deliberate choice rather than a response to an already-identified defect.
Key facts
- Addresses a fault that has already been identified, through inspection, monitoring, or operator report.
- Can be scheduled (planned corrective work) or immediate (unplanned), depending on urgency and risk.
- Differs from reactive maintenance in emphasis: corrective describes the work type (fixing an identified fault), reactive describes the trigger (responding after the fact).
- Differs from run-to-failure, where no action is taken until the asset actually fails, by design.
Why does Corrective maintenance matter in maintenance?
Corrective maintenance covers repair work that addresses a fault already confirmed by inspection, condition monitoring, or an operator report, from replacing a worn part flagged during a routine check to fixing a partial malfunction before it worsens.
How do maintenance teams apply Corrective maintenance?
Reactive maintenance emphasizes the trigger: work starts only after a problem has occurred or been reported, without a planned inspection finding it first. Corrective maintenance can follow either a planned inspection (with the fix then scheduled) or a reactive trigger; the term centers on fixing an identified fault. Run-to-failure is a deliberate strategy of not intervening until the asset fails outright, rather than a response to a partial fault found in advance.
FAQ
Frequently asked questions
What is a maintenance action that addresses an identified fault?
Corrective maintenance: repair work performed to fix a fault that inspection, monitoring, or an operator has already identified, which can be scheduled in advance or carried out immediately depending on urgency.
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