05000259/FIN-2012004-05
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Technical Specifications 3.6.1.3, Primary Containment Isolation Valves (PCIVs), required that while Unit 2 is in Modes 1, 2, and 3, each PCIV, except reactor building-to-suppression chamber vacuum breakers shall be operable. The Technical Specification (TS) action statement A.1 required in part that an affected flow path be isolated by use of at least one closed and de-activated automatic valve within four hours. Contrary to the above, between June 7, 2012, and June 13, 2012, while Unit 2 was in Mode 1, the licensee identified a leak coming from the 2-FCV-73-0081, a one-inch HPCI steam warm-up bypass PCIV and action was not taken to isolate the affected penetration flow path within four hours. The finding was screened in accordance with IMC 0609 Appendix H, Containment Integrity SDP and was characterized to be of very low safety significance (Green) because the 2-FCV-73- 0081 valve was a one-inch valve and would not generally contribute to Large Early Release Frequency (LERF) as discussed in IMC 0609, Appendix H. |
| Site: | Browns Ferry  |
|---|---|
| Report | IR 05000259/2012004 Section 4OA7 |
| Date counted | Sep 30, 2012 (2012Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | C Stancil D Dumbacher E Guthrie D Jones C Kontz P Niebaum J Montgomery L Pressley T Stephen |
| INPO aspect | |
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Finding - Browns Ferry - IR 05000259/2012004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Browns Ferry) @ 2012Q3
Self-Identified List (Browns Ferry)
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