05000361/FIN-2010002-13
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Finding | |
|---|---|
| Title | Failure to Adequately Implement Station Work Order |
| Description | The inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the failure of maintenance personnel to follow Work Order 800195196 and provide appropriate oversight to transmission and distribution personnel while performing work in the electrical switchyard. Specifically, on February 26, 2010, maintenance personnel failed to follow Work Order 800195196, and procedure SO123-XV-15.3, Temporary System Alteration and Restoration, Revision 17, to provide appropriate oversight of transmission and distribution personnel who were performing work in the plant switchyard, which resulted in the over torquing of nine bolts on the reserve auxiliary transformer circuit breakers. The licensee corrected the over torqued bolt condition. This issue was entered into the licensees corrective action program as Nuclear Notifications NNs 200803364 and 200811993. The finding is greater than minor because circumventing procedural requirements, if left uncorrected, would have the potential to lead to a more significant safety concern, in that, more risk significant equipment could be rendered inoperable without the knowledge and approval of appropriate management or control room personnel. The finding is associated with the Mitigating Systems Cornerstone. Using the Manual Chapter 0609, Significance Determination Process, Phase 1 Worksheets, the finding is determined to have a very low safety significance because the finding: (1) is not a design or qualification issue confirmed not to result in a loss of operability or functionality; (2) did not represent an actual loss of safety function of the system or train; (3) did not result in the loss of one or more trains of nontechnical specification equipment; and (4) did not screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. This finding has a crosscutting aspect in the area of human performance associated with work practices because maintenance personnel failed to ensure supervisory and management oversight of work activities, including contractors, such that nuclear safety was supporte |
| Site: | San Onofre  |
|---|---|
| Report | IR 05000361/2010002 Section 4OA2 |
| Date counted | Mar 31, 2010 (2010Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | R Lantz P Elkmann D Allen J Reynoso J Josey G Warnick B Rice W Schaup |
| CCA | H.2, Field Presence |
| INPO aspect | LA.2 |
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Finding - San Onofre - IR 05000361/2010002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (San Onofre) @ 2010Q1
Self-Identified List (San Onofre)
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