Track reliability metrics that change maintenance decisions.
Maintenance KPIs help teams understand whether equipment reliability is improving, whether repairs are becoming faster, and whether planned maintenance is reducing recurring production risk.
Measure failure and recovery in production terms.
Failure frequency, repair duration, spare parts, diagnostics, planned maintenance, and root causes all influence how much scheduled production time becomes reliable uptime.
Reduce repeat failures and shorten recovery.
The strongest maintenance improvements either make failures less frequent, make recovery faster, or prevent the same failure mode from returning.
CRIT-ATie KPIs to Asset Criticality
A small loss on the plant constraint can matter more than a larger loss on redundant equipment.
Related Guide →CRIT-BTrack Frequency and Duration
Failure count and downtime hours reveal different aspects of reliability and should usually be reviewed together.
Related Guide →CRIT-CSeparate Planned and Unplanned Work
Preventive work, corrective work, inspection, emergency repair, and improvement tasks should not be blended into one total.
Related Guide →CRIT-DUse Trends for Decisions
The value of a KPI is in showing whether specific maintenance changes actually improve reliability or recovery.
Related Guide →Visualize reliability performance over time.
These diagrams focus on reliability trend and the operating cycle between failure, repair, verification, and return to service.
Reliability trend.
Track whether failures are becoming less frequent or repair time is shrinking after corrective work.
Maintenance loop.
Failure information should feed back into inspection, service, spare-parts planning, and corrective action.
Relevant maintenance and repair resources.
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