05000333/FIN-2010006-03
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Finding | |
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| Title | Inadequate Corrective Action on RHRSW Strainer Housing Wall Degradation |
| Description | The team identified a finding involving a non-cited violation of 10 CFR 50, Appendix 8, Criterion XVI, \"Corrective Actions,\" for failure to identify and correct a condition adverse to quality. Specifically, Entergy did not take corrective actions to evaluate the rate of identified degradation on the 1OS-581 residual heat removal service water (RHRSW) strainer casing. This resulted in a through wall leak in the strainer which was identified by the team. The team\'s review found that in 2006 Entergy had conducted ultrasonic test (UT) measurements of the strainer and determined that degradation was occurring. Corrective actions for the deficiency required that aUT examination be performed to monitor for further degradation but it was not performed. In response, Entergy entered the issue into the corrective action program, and conducted an UT examination at the leak location to determine the size and extent of the defect which determined that strainer\'s structural integrity was maintained. The finding is more than minor because it is associated with the equipment performance attribute of the Mitigating Systems Cornerstone and affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The team determined the finding was of very low safety significance (Green) because the finding was determined to be a qualification deficiency confirmed not to result in loss of operability. This finding has a cross-cutting aspect in the area of Problem Identification and Resolution, Corrective Action Program Component, because Entergy did not take appropriate corrective actions to address safety issues in a timely manner. Specifically, Entergy did not take action to determine the degradation rate of the 10S581 RHRSW strainer which resulted in a through wall leak. |
| Site: | FitzPatrick  |
|---|---|
| Report | IR 05000333/2010006 Section 1R21 |
| Date counted | Sep 30, 2010 (2010Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | K Mangan G Skinner J Schoppy D Orr T Tinkel L Doerflein P Mckenna |
| CCA | P.3, Resolution |
| INPO aspect | PI.3 |
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Finding - FitzPatrick - IR 05000333/2010006 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (FitzPatrick) @ 2010Q3
Self-Identified List (FitzPatrick)
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