05000361/FIN-2008005-04
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Finding | |
|---|---|
| Title | Inadequate Procedure Implementation for Corrective Action on Degraded Source Handling Tool |
| Description | A self-revealing Green non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, was identified because Nuclear Fuel Services personnel did not properly implement procedural controls to adequately evaluate or repair a degraded source handling tool used in the spent fuel pool. An approved work plan was not used to modify the tool and the tool was returned to service in a degraded condition. Subsequently, on November 7, 2008, while moving a source element to its designated storage location, the neutron source slipped out of the tool and fell such that the bottom of the source element contacted the top of a spent fuel assembly. This finding was entered into the licensees corrective action program as Nuclear Notification 200204667. The finding is more than minor because if left uncorrected the performance of repairs without proper procedures or evaluations has the potential to lead to a more significant safety concern when critical tools are returned to service in a degraded condition. Degraded tools used in the spent fuel pool have the potential to adversely impact reactor safety barrier integrity because of potential damage to spent fuel assemblies or radioactive neutron source elements. Manual Chapter 0609, Appendix M, Significance Determination Process Using Qualitative Criteria, is used since the Significance Determination Process Appendix G methods and tools are not adequate to determine the significance of fuel handling findings. This finding affects the barrier integrity cornerstone and was determined to have very low safety significance by NRC management review because the deficiency did not cause actual degradation of fuel. The finding has a crosscutting aspect in the area of problem identification and resolution associated with corrective action program because Nuclear Fuel Services personnel did not thoroughly evaluate problems such that the resolution address causes and extent of condition associated with a degraded source handling tool P.1(c) (Section 4OA3) |
| Site: | San Onofre  |
|---|---|
| Report | IR 05000361/2008005 Section 4OA3 |
| Date counted | Dec 31, 2008 (2008Q4) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | P Elkmann B Henderson R Kopriva L Carson S Garchow J Reynoso G Warnick M Young M Hay R Baldwin A Fairbanks S Makor T Buchanan |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - San Onofre - IR 05000361/2008005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (San Onofre) @ 2008Q4
Self-Identified List (San Onofre)
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