05000348/FIN-2009007-02
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | TS 3.8.6 requires that battery cell parameters for Train A and Train B Auxiliary Building and Service Water Intake Structure (SWIS) batteries shall be within the limits of Table 3.8.6-1. TS SR 3.8.6.2 requires battery cell parameters to be verified to meet TS Table 3.8.6-1. If one or more required batteries with one or more battery cell parameters are not within Category B, TS 3.8.6 Action statements are required to verify battery cell parameters meet Table 3.8.6-1 Category C limits (> 2.02 V) once per 7 days thereafter and to restore battery cell parameters to Category B limits (> 2.08 V) within 31 days. Contrary to the above, between February 11 and May 7, 2008, Unit 2 Auxiliary Building B-Train Battery Cell number 33 was 2.06 V which was below TS Table 3.8.6-1 limits and the licensee failed to restore Cell number 33 float voltage to Category B limits within 31 days as required per TS 3.8.6 Action statements. The licensee entered this condition into their CAP as CR 2009105768. This finding was evaluated against NRC SDP Phase 1 screening worksheets and determined to be of very low safety significance (Green) because the battery cell was above the 2.02 V Category C limits during the entire period and therefore, the battery remained available to perform its safety function during the affected period |
| Site: | Farley  |
|---|---|
| Report | IR 05000348/2009007 Section 4OA7 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | R Taylor S Ninh S Sandal D Merzke T Lighty W Deschaine |
| INPO aspect | |
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Finding - Farley - IR 05000348/2009007 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Farley) @ 2009Q4
Self-Identified List (Farley)
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