05000285/FIN-2008004-01
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Finding | |
|---|---|
| Title | Reactor Coolant System Leak During Plant Heat Up Due to Inadequate Valve Packing |
| Description | A Green self-revealing noncited violation of Technical Specification 5.8.1.a (Procedures) was identified for an inadequate maintenance procedure. Specifically, the licensees maintenance procedures did not provide adequate instructions for the craft to re-pack Pressurizer Spray Valve PCV-103-1 that resulted in a 2-3 gpm reactor coolant leak. This finding was greater than minor because it was similar to non-minor example 4.b in Inspection Manual Chapter 0612, Appendix E, Examples of Minor Issues, in that a procedural error caused a reactor trip or other transient. The inspectors evaluated this finding using Manual Chapter 0609, Attachment 4. The inspectors determined that it was of very low safety significance (Green) because, assuming worst case degradation, the finding would not result in exceeding the technical specification limit for any reactor coolant system leakage, nor would it have likely affected other mitigation systems resulting in a total loss of their safety function. This finding had a crosscutting aspect in Human Performance, specifically the Decision Making aspect [H.1.(b)] because licensee personnel failed to use conservative assumptions in decision-making. Specifically, the relevant procedure left the detail of repacking the valves to skill of the craft and licensee personnel failed to challenge or question whether that was appropriate. |
| Site: | Fort Calhoun  |
|---|---|
| Report | IR 05000285/2008004 Section 4OA3 |
| Date counted | Sep 30, 2008 (2008Q3) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | P Goldberg P Elkman J Kirkland J Hanna M Young |
| CCA | H.13, Consistent Process |
| INPO aspect | DM.1 |
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Finding - Fort Calhoun - IR 05000285/2008004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fort Calhoun) @ 2008Q3
Self-Identified List (Fort Calhoun)
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