05000250/FIN-2010009-01
From kanterella
Revision as of 20:41, 20 February 2018 by StriderTol (talk | contribs) (Created page by program invented by StriderTol)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Finding | |
|---|---|
| Title | Violation of Technical Specification 5.5.1.1 regarding Unit 3 spent fuel storage with degrading Boraflex Poison |
| Description | A. TS 5.5.1.1.a states that the Unit 3 spent fuel storage racks are designed and shall be maintained with a Keff less than 1.0 when flooded with unborated water, which includes an allowance for biases and uncertainties as described in Chapter 9 of the UFSAR. Chapter 9 of the Turkey Point UFSAR states, in part, that the most limiting depletion of Boron-10 from the Boraflex fuel storage racks was a reduction of nominal Boron-10 areal density of 50 percent for Region II racks. Contrary to the above, the licensee failed to maintain the Unit 3 spent fuel storage racks such that Keff would remain less than 1.0 when flooded with unborated water when considering the biases and uncertainties described in Chapter 9 of the UFSAR. Specifically, licensee data indicates that dissolution of Boron-10 from Boraflex panels in Region II of the FPL 2 Turkey Point Unit 3 spent fuel pool resulted in a reduction in the nominal Boron-10 areal density in excess of 50 percent, such that Keff would not have been maintained less than 1.0 for all cases if the spent fuel pool had been flooded with unborated water.
B. 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, states, in part, that measures shall be established to assure that conditions adverse to quality are promptly identified and corrected. Turkey Point UFSAR page 9.5-12 states that the most limiting case obtained to assure Keff was equivalent to less than 1.0 in Region II was a reduction of Boraflex nominal areal density by 50 percent. Contrary to the above, a condition adverse to quality was not promptly identified and corrected. Specifically, in 2004 and 2007, the licensee identified two spent fuel pool storage cells with Boraflex degradation greater than an administrative action limit specified in Turkey Point Plant Curve Book, Section 5. However, the licensee failed to correct this condition adverse to quality until it was identified by NRC inspectors in December 2009. These violations are associated with a White Significance Determination Process finding for Unit 3 in the Initiating Events cornerstone |
| Site: | Turkey Point  |
|---|---|
| Report | IR 05000250/2010009 Section 4OA2 |
| Date counted | Mar 31, 2010 (2010Q1) |
| Type: | Violation: White |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | C Evans C Scott L Wert M Sykes R Taylor R Zimmerman V Mccreed Richj Dodson J Paige S Ninh |
| CCA | P.3, Resolution |
| INPO aspect | PI.3 |
| ' | |
Finding - Turkey Point - IR 05000250/2010009 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Turkey Point) @ 2010Q1
Self-Identified List (Turkey Point)
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||