Six numbers that show how well the crews perform.
Learning Track · Module 8: Maintenance · Step 66 of 101
| KPI | How to calculate | Shows |
|---|---|---|
| SLA met | Resolved before due ÷ resolved | Speed against the promise |
| MTTR | Average time from raised to resolved | Speed of repair |
| Share working | Working ÷ inspected | Network health |
| Repeat failures | New job within 30 days on the same asset | Quality of repair |
| First-time fix | Resolved in one visit ÷ resolved | Diagnosis and spares |
| Backlog age | Age of the oldest open jobs | Forgotten jobs |
EN 15341 gives a full set of maintenance KPIs. Calculate MTTR by priority.
Sources
- EN 15341 Maintenance key performance indicators
- EN 13306 Maintenance terminology
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