05000382/FIN-2015008-03
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | The licensee failed to perform a full 10 CFR 50.59 evaluation for changes made to the Core Operating Limits Report during Refueling Cycle 20. Title 10 of the Code of Federal Regulations, Part 50.59, states, in part, that licensees may make changes to the facility as described in the final safety analysis report without obtaining a license amendment only if the change does not meet any of the criteria in paragraph (c)(2), which includes a full evaluation of eight criteria supporting the conclusion that the change is not adverse. Several physics assessment checklist exceptions for Cycle 20 inputs were more limiting as compared to those in the licensing basis analysis of record, including the axial shape index limit and azimuthal tilt. Contrary to the above, prior to August 27, 2015, the licensee failed to complete a full 10 CFR 50.59 evaluation for changes to the core operating limits report for Cycle 20. Specifically, the axial shape index limit is an input to various Reload Physics and Accident analyses, and is specifically discussed in the updated final safety analysis report, while the azimuthal tilt had two inputs related to heating of reactor vessel internals that should have been considered adverse and therefore required a full 10 CFR 50.59 evaluation. This finding was assessed using Manual Chapter 0609, Appendix A, The Significance Determination Process (SDP) for Findings at Power, and was determined to be of very low safety significance (Green) because it did not result in the mismanagement of reactivity by operators. This issue was entered into the licensees corrective action program as Condition Reports CR-WF3-2015-04040, CR-WF3-2015-04045, and CR-HQN-2015-00684. |
| Site: | Waterford  |
|---|---|
| Report | IR 05000382/2015008 Section 4OA7 |
| Date counted | Sep 30, 2015 (2015Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | M Williams R Kopriva T Farnholtz W Sifre |
| Violation of: | 10 CFR 50.59 |
| INPO aspect | |
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Finding - Waterford - IR 05000382/2015008 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Waterford) @ 2015Q3
Self-Identified List (Waterford)
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