Definition

MTTR (Mean Time To Repair)

Mean Time To Repair is the average time required to restore a piece of equipment to working condition after a failure, including diagnosis, parts sourcing, and the actual repair. In QSR and hospitality operations, MTTR is the single best leading indicator of how much revenue an outage will cost — every hour matters.

MTTR = (Total downtime hours) ÷ (Number of failures). It is bounded on the low end by how fast your technician can arrive and on the high end by parts availability.

Restaurants with strong spare-parts strategy and vendor SLAs see MTTR figures as low as 1-2 hours on common failures (door seals, thermostats, fan motors). Without those, the same failures stretch to 24-48 hours waiting on parts.

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