05000237/FIN-2011002-07
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Finding | |
|---|---|
| Title | Dresden 3B Circulating Water Pump Bearing Failure Due to Low Oil Level |
| Description | A self-revealed finding was identified for the bypass of a circulating water pump lower bearing high temperature alarm without first verifying the instrument reading. Prior to bypassing the alarm, the licensee did not verify if the indication was valid. No violation of regulatory requirements occurred. Planned corrective actions included the creation of an action for operations department management to communicate the issue of the bearing temperature not being addressed in a timely manner to operations department personnel, and an action to the system manager to review operator rounds for circulating water for enhancements. Using the guidance contained in IMC 0612, Appendix B, Issue Disposition Screening, dated January 1, 2010, the inspectors determined that the finding was more than minor because it affected the Initiating Events Cornerstone objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. The inspectors evaluated the finding using IMC 0609, Attachment 0609.04, Phase 1 Initial Screening and Characterization of Findings, dated January 10, 2008. The inspectors answered No to all questions in the Initiating Events Cornerstone column of Table 4a, Characterization Worksheet for IE, MS, and BI Cornerstones. Therefore, the finding screened as Green (very low safety significance). The inspectors determined that this issue also affected the cross-cutting area of Human Performance (Work Practices) because the licensee personnel did proceed in the face of uncertainty when bypassing the circulating water pump high bearing temperature alarm without verifying if the indication was valid (H.4(a)). |
| Site: | Dresden  |
|---|---|
| Report | IR 05000237/2011002 Section 4OA3 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | Finding: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | C Zoia D Melendez-Colon C Phillips D Reeser R Baker M Ring T Go J Draper |
| CCA | H.12, Avoid Complacency |
| INPO aspect | QA.4 |
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Finding - Dresden - IR 05000237/2011002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Dresden) @ 2011Q1
Self-Identified List (Dresden)
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