05000397/FIN-2011005-02
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Finding | |
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| Title | Failure to Include Appropriate Acceptance Criteria in Offsite Power Alignment Procedure |
| Description | The inspectors identified a non-cited violation of Technical Specification 5.4.1.a, for the licensees failure to include appropriate steps in a surveillance test procedure. Specifically, Procedure OSP-ELEC-W101, Offsite Station Power Alignment Check, Revision 20, only verified that voltage was within a specified band and proper onsite breaker alignment, without verifying that the site was aligned to a credited power source. The inspectors determined that the licensee could complete the surveillance procedure as written and declare the surveillance requirement met even with the startup transformer being powered from the un-credited 115kV distribution system. The inspectors identified this issue in followup of an October 5, 2011 issue where the licensee experienced a loss of the licensing bases power supply to the startup transformer without operator knowledge. Following identification of this issue, the licensee revised Procedure OSP-ELEC-W101 to have operators verify the startup transformer is powered from the licensing basis power source. This issue was entered into the licensees corrective action program as Action Request AR 249931. The finding was more than minor because it affected the procedure quality attribute of the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Using Inspection Manual Chapter 0609.04, Phase 1 Initial Screening and Characterization of Findings, the inspectors determined this finding to be of very low safety significance (Green) because it did not result in the loss of a system safety function, did not represent the loss of safety function of a single train for greater than its allowed outage time, did not result in the loss of safety function of any non-technical specification equipment, and did not screen as potentially risk significant due to seismic, flooding, or severe weather initiating events. The inspectors determined a cross-cutting aspect was not applicable since the cause of the procedure inadequacy originated from its original implementation with missed opportunities in 2007 and therefore was not reflective of current plant performance |
| Site: | Columbia  |
|---|---|
| Report | IR 05000397/2011005 Section 1R15 |
| Date counted | Dec 31, 2011 (2011Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | P Elkmann W Walker J Groom M Hayes |
| INPO aspect | |
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Finding - Columbia - IR 05000397/2011005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Columbia) @ 2011Q4
Self-Identified List (Columbia)
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