05000321/FIN-2010004-05
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | A licensee-identified violation was discovered on December 5, 2009 for Unit 2 of TS 3.3.5.1, 3.3.5.2, 3.5.1, and 3.5.3 when HPCI and RCIC were rendered inoperable due to maintenance that removed the condensate storage tank (CST) low level instruments from service. These low level switches for HPCI (2E41-N002 and 2E41- N003) and for RCIC (2E51-N060 and 2E51-N061) function to allow the automatic suction swap from the CST to the torus. TS 3.3.5.1 requires emergency core cooling system (ECCS) instrumentation to be operable per Table 3.3.5.1-1. TS 3.3.5.2 requires RCIC system instrumentation to be operable per Table 3.3.5.2-1. TS 3.5.1 requires in part that each ECCS injection/spray subsystem shall be operable. TS 3.5.3 requires the RCIC system to be operable. Contrary to the above TS requirements, on December 5, 2009 a jumper was installed as part of planned maintenance activities that disabled both required channels of the CST low level suction swap functions for both HPCI and RCIC and the required actions of TSs were neither entered nor complied with. The significance of this finding was screened using Phase 1 of the SDP in accordance with NRC IMC 0609 Attachment 4, Table 4a. This screening required a Phase 2 and Phase 3 analysis in accordance with NRC IMC 0609 Appendix A because this finding involved concurrent multiple equipment issues, both HPCI and RCIC systems were impacted. The Phase 3 review concluded the significance of the finding to be Green due to the small exposure time (less than three hours). This issue was captured in the licensees corrective action program as CR 2009111523 and was documented in LER 05000366/2009-005 |
| Site: | Hatch  |
|---|---|
| Report | IR 05000321/2010004 Section 4OA7 |
| Date counted | Sep 30, 2010 (2010Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | S Shaeffer G Johnson M Cain E Morris P Niebaum K Schaaf D Hardage |
| INPO aspect | |
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Finding - Hatch - IR 05000321/2010004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Hatch) @ 2010Q3
Self-Identified List (Hatch)
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