05000305/FIN-2012005-07
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Finding | |
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| Title | Licensee-Identified Violation |
| Description | Technical Specification SR 3.4.14.2 requires verification that the RHR system interlock prevents the valves from being opened with a simulated or actual pressure signal > 450 psig as implemented in the conversion to ITSs by License Amendment No. 207. Contrary to the above, from February 2011 until September 13, 2012, the licensee failed to recognize that the procedures that calibrated and tested the RHR system interlock would not assure that SR 3.4.14.2 was met. Specifically, during startup from the refueling outage in May 2012, after the 18-month SR was performed, the SR was not identified as not being met, and the required TS 3.4.14.C LCO entry was not made. The ITS conversion process failed to identify the +/- 15 psig (0.5 percent) setpoint tolerance for the 450 psig setpoint would allow opening the valve at a pressure greater than 450 psig; therefore, a change to the setpoint was needed to fulfill the SR requirement. The inspectors determined that the violation could be evaluated using the SDP in accordance with IMC 0609, Significance Determination Process, Attachment 0609.04, Initial Characterization of Findings, dated June 19, 2012, and Appendix A, The Significance Determination Process (SDP) for Findings At-Power Exhibit 1, Initiating Events Screening Questions, dated June 19, 2012. The inspectors answered No to all the screening questions and determined the finding screened as having very low significance (Green). The licensee documented this violation in CR488003 and conducted an apparent cause determination. The licensee took corrective actions to fulfill the TS LCO (closing valves with supply breakers off). Additionally, engineering was determining a lower setpoint and calibration tolerances that would fulfill surveillance requirements. |
| Site: | Kewaunee  |
|---|---|
| Report | IR 05000305/2012005 Section 4OA7 |
| Date counted | Dec 31, 2012 (2012Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | J Beavers V Myers K Carrington D Mcneil R Winter K Riemer J Jandovitz C Moore J Laughlin R Krsek K Barclay |
| INPO aspect | |
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Finding - Kewaunee - IR 05000305/2012005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Kewaunee) @ 2012Q4
Self-Identified List (Kewaunee)
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