05000327/FIN-2010002-02
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Finding | |
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| Title | Licensee-Identified Violation |
| Description | The following violation of very low safety significance (Green) was identified by the licensee and is a violation of NRC requirements that meets the criteria of Section VI of the NRC Enforcement Policy, NUREG-1600, for being dispositioned as an NCV. Units 1 and 2 TS 5.6.1.1.c required that used fuel assemblies not be stored adjacent to new fuel assemblies in the spent fuel pool due to criticality concerns. Contrary to this, on October 1, 2009 and October 7, 2009, the licensee performed fuel moves that placed 4 used assemblies adjacent to new fuel. During a review on October 28, 2009, the licensee discovered the error and took action to verify and maintain adequate spent fuel boron concentration at or above the level required by TS LCO3.7.13 to ensure adequate margin to criticality existed until fuel moves were conducted to restore compliance on October 31, 2009. The licensee entered the issue into the corrective action program as PER 206113 and reported the event in LER 05000327, 328/2009-008-00 and 2009-008-01. Manual Chapter 0609, Appendix M, Significance Determination Process Using Qualitative Criteria, was used since the Significance Determination Process guidance for at-power and shutdown conditions does not apply to spent fuel pool criticality control. This finding was determined to be of very low safety significance (Green) because the spent fuelpool configuration was determined, by analysis, to be bounded by the calculation ofrecord specified in the FSAR and TS bases. |
| Site: | Sequoyah  |
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| Report | IR 05000327/2010002 Section 4OA7 |
| Date counted | Mar 31, 2010 (2010Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | C Kontz W Deschaine E Guthrie C Young M Speck R Carrion R Baldwin |
| INPO aspect | |
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Finding - Sequoyah - IR 05000327/2010002 | |||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Sequoyah) @ 2010Q1
Self-Identified List (Sequoyah)
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