05000302/FIN-2010004-01
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Finding | |
|---|---|
| Title | Flood Calculations did not Reflect Plant Configuration |
| Description | The inspectors identified a non-cited violation (NCV) of 10 CFR 50 Appendix B, Criterion III, Design Control, regarding the licensees failure to ensure that the design bases of two components were correctly translated into specifications, drawings, procedures, and instructions. Specifically, licensee personnel failed to ensure that two floor penetration flood barriers (metal sleeves) were of the proper height to prevent water from entering the A train decay heat removal (DHR)/building spray (BS) vault during a design basis internal flooding event. The design basis did not assume any leakage to the vault. The licensee initiated nuclear condition report (NCR) 409263 in the corrective action program to address the issue. This finding is more than minor because it affects the design control attribute of the mitigating system cornerstone, and affected the cornerstone objective of ensuring availability, reliability, and capability of systems that respond to initiating events. Using Manual Chapter 0609, Phase 1 screening worksheet, the inspectors determined that the finding has very low safety significance because it did not result in a loss of any system safety function. The inspectors found that the cause of the finding is not reflective of current performance and therefore, a cross-cutting aspect will not be assigned. |
| Site: | Crystal River  |
|---|---|
| Report | IR 05000302/2010004 Section 1R06 |
| Date counted | Sep 30, 2010 (2010Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.06 |
| Inspectors (proximate) | D Rich E Crowe R Chou R Reyes T Morrissey |
| INPO aspect | |
| ' | |
Finding - Crystal River - IR 05000302/2010004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Crystal River) @ 2010Q3
Self-Identified List (Crystal River)
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