05000416/FIN-2009006-05
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Finding | |
|---|---|
| Title | Two Examples of a Failure to Meet 10 CFR Part 50, Appendix B, Criterion XI, Test Control |
| Description | The team identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion XI, Test Control, with two examples. Specifically, the team identified that the licensee failed to develop and implement adequate testing programs for Class 1Emolded-case circuit breakers, and for the voltage and frequency response of the standby diesel generators that met design or vendor requirements and recommendations. In response, the licensee entered these examples in the corrective action program as CR-GGN-2009-01024, and CR-GGN-2009-01057.This finding was more than minor because it affected the mitigating systems cornerstone attribute of external events for ensuring the availability, reliability, and capability of systems that respond to initiating events. Using the Inspection Manual Chapter 0609, Significance Determination Process, Phase 1 Worksheets, each example was determined to be of very low safety significance (Green) because they did not represent a loss of system safety function, did not represent an actual loss of safety function of a single train for greater than its Technical Specification allowed outage time, did not represent an actual loss of one or more risk-significant non-Technical Specification trains of equipment for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, and did not screen as potentially risk-significant due to seismic, flooding, or severe weather. This finding has a cross cutting aspect in the area of Problem Identification and Resolution, in that self assessments are of sufficient depth, are comprehensive, are appropriately objective, and are self critical. The licensee had conducted a Component Design Bases Assessment, LO-GLO-2008-00044 in August 2008, and failed to adequately assess an identical finding identified at River Bend Station during their 2008 Component Design Bases Inspection. The licensee had determined that this issue was not applicable at Grand Gulf Nuclear Station P.3(a). |
| Site: | Grand Gulf  |
|---|---|
| Report | IR 05000416/2009006 Section 1R21 |
| Date counted | Jun 30, 2009 (2009Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | I Anchondo C Ryan C Edwards T Famholtz K Clayton R Kopriva J Adams M Runyan M Bloodgood J Nicely |
| CCA | P.6, Self-Assessment |
| INPO aspect | CL.2 |
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Finding - Grand Gulf - IR 05000416/2009006 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Grand Gulf) @ 2009Q2
Self-Identified List (Grand Gulf)
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