Mean Time to Repair
MTTRThe average time required to diagnose and fix a failed piece of equipment and return it to operational status. MTTR is a key maintenance metric that helps organizations evaluate maintenance team effectiveness and plan for equipment downtime in production schedules.
RELATED TERMS
Mean Time Between Failures
The predicted average time between equipment breakdowns during normal operation. MTBF is used to assess equipment reliability, plan preventive maintenance schedules, and make decisions about equipment replacement or upgrades.
Downtime
Periods when equipment or production lines are not operating, whether due to breakdowns, changeovers, maintenance, or lack of materials. Downtime directly impacts productivity and OEE, making its reduction a primary focus of maintenance and operations improvement efforts.
Total Productive Maintenance
A holistic approach to equipment maintenance that aims to achieve perfect production with no breakdowns, no defects, and no accidents. TPM involves operators in routine maintenance tasks and focuses on proactive and preventive maintenance to maximize equipment effectiveness throughout its lifecycle.
Predictive Maintenance
A maintenance strategy that uses sensor data, analytics, and machine learning to predict when equipment is likely to fail, enabling repairs before breakdowns occur. Predictive maintenance reduces unplanned downtime and maintenance costs compared to reactive or time-based maintenance approaches.