i8.5.5.1 Necessary measures shall be determined and taken to ensure that after the planned or unplanned production downtime, the product conformity requirements are verified through first article confirmation, parameter inspection, etc. <br>8.5.5.2 Planned downtime Refers to the regular maintenance of equipment, and non-planned shutdowns refer to emergencies such as machine failures, power outages, fires, etc. <br>8.5.6 Comprehensive production and maintenance <br>8.5.6.1 The organization shall develop, implement and maintain a documented comprehensive production and maintenance system. The system shall be at least Including: <br>a identification of process equipment necessary to produce qualified products in accordance with requirements; <br>b availability of equipment replacement parts; <br>c provision of resources for machine, equipment and facility maintenance; <br>d packaging and protection of equipment, tooling and measuring tools; <br>e applicable customers Specific requirements; <br>f Documented maintenance objectives, such as: OEE (Overall Equipment Effectiveness), MTBF (Mean Time Between Failures) and MTTR (Mean Time to Repair), and preventive maintenance compliance indicators. <br>g The performance of maintenance objectives should be used as input to management review <br>h Periodic review of maintenance plans and objectives and documented action plans to take corrective actions when objectives are not met; <br>i use of preventive maintenance methods; <br>j predictions Use of maintenance methods, if applicable; <br>k Periodic maintenance <br>8.5.6.2 Refer to [Equipment Maintenance Management Procedures] for implementation details. <br>8.5.7 Management of production tools and molds <br>8.5.7.1 The company must provide resources for the development, manufacturing and verification of tools, molds and measuring tools
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