05000440/FIN-2008002-01
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Finding | |
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| Title | Adequacy of Maintenance Associated With Emergency Service Water Strainer Failure (Section 1R12) |
| Description | A finding of very low safety significance and a non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, \"Procedures,\" was self-revealed when the \'B\' emergency service water (ESW) system pump discharge strainer failed on December 27, 2007. A strainer inspection cover, about 6 inches wide and 9 inches tall, became dislodged due to a loose fastener, and water discharged into the ESW pump house when the \'B\' ESW pump was started. The strainer was last worked during a refueling outage in April 2007. The maintenance procedures associated with the strainer were determined to be inappropriate because they resulted in the unexpected failure of the strainer cover. As part of their immediate corrective actions, licensee personnel revised strainer cover installation procedures, repaired the strainer, and restored availability of the \'B\' ESW system. The finding was considered more than minor because it was associated with the Procedure Quality attribute of the Mitigating Systems cornerstone and adversely affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events in order to prevent undesirable consequences. Specifically, the finding resulted in the unavailability of the \'B\' ESW system train. The finding was determined to be of very low safety significance because it did not represent an actual loss of safety function of a single train for greater than the TS-allowed outage time. (Section 1R12) |
| Site: | Perry  |
|---|---|
| Report | IR 05000440/2008002 Section 1R12 |
| Date counted | Mar 31, 2008 (2008Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.12 |
| Inspectors (proximate) | M Wilk A Dahbur G Wright M Franke J Cameron |
| INPO aspect | |
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Finding - Perry - IR 05000440/2008002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Perry) @ 2008Q1
Self-Identified List (Perry)
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