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Rework Rate
Maintenance rework rate measures the share of work that must be redone because its original result did not meet the required acceptance criteria.
In maintenance, rework rate measures how much work must be redone because its result failed a required check. The Department of Energy's work-planning handbook includes failed post-maintenance tests and reworked work orders among its example quality measures.
For a property-team cohort calculation, divide completed work orders requiring corrective rework by all completed work orders in that same cohort, then multiply by 100. Define the completion period, follow-up window and acceptance criteria before comparing results. A planned follow-up visit is not automatically evidence of defective work.
Source: U.S. Department of Energy: DOE-HDBK-1211-2014, Appendix B.
Frequently Asked Questions
Is rework rate the inverse of first-time fix rate?
Not necessarily. First-time fix rate asks whether work was resolved on the initial visit. Rework concerns a result that needs correction after failing requirements. Different populations, tests or follow-up windows can produce different rates.
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