05000341/FIN-2010005-01
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Finding | |
|---|---|
| Title | Plastic Face Shield Lost in the Reactor Cavity |
| Description | A finding of very low safety significance and an associated NCV of 10 CFR 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, were identified by the inspectors for the licensees failure to follow procedures and review the accident analysis in Updated Final Safety Analysis Report (UFSAR) Chapter 15 for the operability evaluation of a face shield lost in the reactor cavity, which could impact coolant flow to a fuel channel. Specifically, the licensee failed to follow Procedure MES27, Fermi 2 Engineering Support Conduct Manual, which requires evaluations needed to understand the potential consequences of the plant condition. As corrective action, the licensee revised their operability evaluation, EFA-B11-10-011, to include the needed information to address the accident analysis with potential flow channel blockage. The inspectors determined the finding was more than minor because it impacted the configuration control attribute of the Barrier Integrity Cornerstone in IMC 0612, Appendix B, Reactor Safety. The deficiency adversely affected the Barrier Integrity Cornerstone objective to provide reasonable assurance that the clad barrier would be effective as a barrier from releases during plant events, in that the deficient evaluation could challenge the clad integrity. The Finding was determined to be of very low safety significance, Green, because the licensee took action before reactor start-up to ensure additional evaluation was completed, and the issue affects the fuel barrier only, in accordance with Table 4a of IMC 0609.04. This finding has a cross-cutting aspect in the area of Human Performance, Resources, conservative assumptions, because the licensee failed to provide complete information in the operability determination that would allow Operations to fully understand the potential consequences of the issue. Specifically, the licensee judged that the condition remained bounded without defining the analyzed parameters, and the licensee failed to validate the underlying assumptions in the evaluation. |
| Site: | Fermi  |
|---|---|
| Report | IR 05000341/2010005 Section 1R15 |
| Date counted | Dec 31, 2010 (2010Q4) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | R Jickling B Jose M Mitchell M Bielby J Neurauter D Jones R Morris D Kimble V Meghani R Jones J Bozga |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
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Finding - Fermi - IR 05000341/2010005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fermi) @ 2010Q4
Self-Identified List (Fermi)
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