MTTR (Mean Time To Repair)
MTTR is the average time taken to repair a failed asset and return it to service, including diagnosis, repair and testing. A lower MTTR means faster recovery and less downtime. It complements MTBF in measuring maintenance performance.
MTTR captures everything in the repair cycle: diagnosis, securing parts, the physical repair and testing before restart. It complements MTBF, since availability depends on both how often equipment fails and how quickly it is fixed. Shortening MTTR through better diagnostics, accessible design, ready spares and trained crews is often a faster route to higher uptime than chasing rare failures, particularly for assets where some failure is unavoidable.
Related reading
- Predictive maintenance: a practical guide
- Fiix (Rockwell Automation)
- MaintainX
- CMMS
- Unplanned Downtime
- MTBF (Mean Time Between Failures)
Related terms
CMMS · Unplanned Downtime · MTBF (Mean Time Between Failures) · Spare Parts Optimisation · Wrench Time