05000390/FIN-2010004-01
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Facility Operating License NPF-90 for Watts Bar Nuclear Plant Unit 1, Condition 2.F, requires that TVA shall implement and maintain in effect all provisions of the approved fire protection program as described in the Fire Protection Report (FPR). Contrary to the above, on August 18, 2010, the licensee identified a failure to comply with the fire barrier sealing requirements of the FPR when two three-inch conduit penetrations were determined to be improperly sealed in the two-hour fire barrier separating the 2B 480V transformer room from the unit 2 south valve vault room. Upon identification of the degraded penetrations, the licensee established the required compensatory fire watches until the penetrations were properly sealed. This was identified in the licensees CAP as PER 245285. This finding was of very low safety significance in accordance with IMC 0609, Appendix F, Attachment 1, Fire Protection SDP Phase 1 Worksheet, because the fire barrier was only moderately degraded and there were no fixed or in-situ fire ignition sources that would subject the degraded fire barrier to direct flame impingement. |
| Site: | Watts Bar  |
|---|---|
| Report | IR 05000390/2010004 Section 4OA7 |
| Date counted | Sep 30, 2010 (2010Q3) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | R Monk W Loo H Gepford E Guthrie G Kuzo L Miller M Pribish C Dykes |
| INPO aspect | |
| ' | |
Finding - Watts Bar - IR 05000390/2010004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Watts Bar) @ 2010Q3
Self-Identified List (Watts Bar)
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