05000348/FIN-2010003-03
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | TS 3.6.3, Containment Isolation Valves requires, each containment isolation valve shall be operable with the unit in Modes 1, 2, 3, and 4. A note attached to the Limited Condition for Operation allows penetration flow path(s) except for 48-inch purge valve flow paths, which may be un-isolated intermittently under administrative controls. Contrary to the above, the licensee declared prerequisites for entering Mode 4 were met on May 13, 2010 at 2:19 a.m., and entered Mode 4 at 2:26 a.m. with containment isolation valve Q2P18V001 unlocked and open. Q2P18V001, is the service air outboard containment isolation valve and was discovered open by the licensee during the performance of a surveillance test on June 2, 2010. The licensee immediately closed and locked the valve restoring compliance with the TS. The licensee also entered the discovery into its CAP as CR 2010107407. This finding was assessed using IMC 0609, Phase 1 screening worksheets of Attachment 4 and H relating to Containment Barrier Integrity, and determined to be of very low safety significance (Green) because the open penetration would not have allowed the entire volume to exit through the opening within a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period. |
| Site: | Farley  |
|---|---|
| Report | IR 05000348/2010003 Section 4OA7 |
| Date counted | Jun 30, 2010 (2010Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | E Crowe S Shaeffer A Nielsen T Morrissey S Rose R Berryman S Sandal M Coursey J Sowa C Dykes |
| INPO aspect | |
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Finding - Farley - IR 05000348/2010003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Farley) @ 2010Q2
Self-Identified List (Farley)
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