05000498/FIN-2010007-03
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Finding | |
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| Title | Transfer of Station Blackout Requirements from Current Licensing Basis into Final Safety Analysis Report |
| Description | The team identified that Surveillance Test 32345357, 125 Volt Class 1E Battery Modified Performance Surveillance Test, discharge time was terminated at 03:25:59 for the 125 V DC batteries and that the licensee had never tested their batteries to the established station blackout design requirements (battery duty cycle) in the current licensing basis that specified a 4-hour duty cycle. The licensee argued that no testing requirements were violated, because they were licensed as an alternate alternating current plant, and as a result, did not have to perform a coping analysis as defined by Regulatory Guide 1.155, Station Blackout, and NUMARC 87-00, Guidelines and Technical Bases for NUMARC Initiatives Addressing Station Blackout at Light Water Reactors. The team reviewed all of the provided licensing and design basis documents that addressed station blackout battery capacity, but did not see any indication that the licensee was an approved alternate alternating current plant. Additionally, the licensee was unable to provide any documentation that showed that they were an alternate alternating current plant capable of starting in 10 minutes and did not require a coping analysis. After discussions, the licensee acknowledged that their Final Safety Analysis Report was not completely accurate on the subject of station blackout battery testing and was unclear on whether they were an alternate alternating current plant. To resolve this matter, the NRC is waiting on the licensee's submittal to NRR clarifying their current licensing basis. Upon completion, the NRC can complete the inspection and review of this unresolved item: URI 05000498;05000499/2010007-03, Transfer of Station Blackout Requirements from Current Licensing Basis into Final Safety Analysis Report. |
| Site: | South Texas  |
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| Report | IR 05000498/2010007 Section 1R21 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | URI: |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | R Kopriva T Farnholtz J Adams C Baron G Skinner M Runyan A Fairbanks S Makor C Steelyj Dixon G Guerra B Tharakan W Walker M Young D Proulx M Chambers S Makor S Hedger J Watkins J Dyker |
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Finding - South Texas - IR 05000498/2010007 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (South Texas) @ 2011Q1
Self-Identified List (South Texas)
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