05000250/FIN-2010008-02
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Finding | |
|---|---|
| Title | Failure to correct Boraflex degradation in the SFP in a timely manner |
| Description | The inspectors identified an AV of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, for failure to effectively correct a condition adverse to quality involving degradation of Boraflex neutron absorber material in the Unit 3 SFP, such that in November 2009 two spent fuel pool storage cells L38, F19 with Boraflex degradation greater than that assumed in the criticality analyses had been allowed to remain inservice even after the licensee had revised SFP management controls. When brought to the attention of the licensee by the NRC, condition report 2009-34470 was written to document the non-compliance. The finding was more than minor because, if left uncorrected, it would become a more significant safety concern since it could not be determined if other, untested storage rack locations could be more degraded. In addition, the finding impacted the initiating event cornerstone objective of limiting events that challenge safety functions; for example, preventing criticality in an area not designed for criticality. Because probabilistic risk assessment tools were not suited for this finding, the inspectors evaluated the finding using IMC 0609, Appendix M, Significance Determination Process Using Qualitative Criteria. Because the Boraflex degradation resulted in a significant loss of margin to criticality, NRC management concluded the finding was preliminarily greater than Green. The inspectors determined that the cross-cutting aspect of Problem Identification and Resolution (P.1(d)) is applicable to this issue because the licensee did not implement effective corrective action for degradation of Boraflex neutron absorber material |
| Site: | Turkey Point  |
|---|---|
| Report | IR 05000250/2010008 Section 4OA2 |
| Date counted | Mar 31, 2010 (2010Q1) |
| Type: | TEV: Severity level III |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | J Stewart M Barillas M Sykes P Higgins S Ninhc Evansc Scott L Wert M Sykes R Taylor R Zimmerman V Mccree |
| CCA | P.3, Resolution |
| INPO aspect | PI.3 |
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Finding - Turkey Point - IR 05000250/2010008 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Turkey Point) @ 2010Q1
Self-Identified List (Turkey Point)
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