05000335/FIN-2010005-02
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Finding | |
|---|---|
| Title | |
| Description | The inspectors identified a NCV of 10 CFR 50, Appendix B, Criterion XVI, Corrective Action, for the licensee failing to take timely and effective corrective actions for Emergency Core Cooling System (ECCS) area exhaust fan damper louver failures resulting in TS Limiting Conditions for Operation (LCO) entries for an inoperable ECCS area exhaust air filter train. Specifically, multiple damper failures occurred over at least a two year period where the root cause of the failures was not identified and corrected to prevent recurrence. The finding was more than minor because it is similar to Example 4.f in IMC 0612, Appendix E, in that the failure to adequately correct a condition adverse to quality affected the 1-HVE-9A ECCS area exhaust fans operability. The finding was evaluated in accordance with IMC 0609.04, Significance Determination Process (SDP) Phase 1 screening worksheets and determined to be of very low safety significance because the finding did not represent a degradation of the radiological barrier function provided for the auxiliary building, or represent a degradation of the control room barrier function, or an actual open pathway of containment, or a reduction in function of containment hydrogen ignitors. The inspectors determined that this finding had a cross-cutting aspect in the area of Problem Identification and Resolution, Corrective Action Program, because the licensee did not thoroughl
evaluate the problem such that the resolution addressed causes, as necessary. |
| Site: | Saint Lucie  |
|---|---|
| Report | IR 05000335/2010005 Section 4OA2 |
| Date counted | Dec 31, 2010 (2010Q4) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | S Walker R Aiello T Hoeg S Sanchez D Rich C Even R Patterson B Collins R Williams |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Saint Lucie - IR 05000335/2010005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Saint Lucie) @ 2010Q4
Self-Identified List (Saint Lucie)
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