05000461/FIN-2016003-05
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Finding | |
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| Title | Spent Fuel Pool Liner Design Not Verified per Code |
| Description | The inspectors identified a finding of very low safety significance and an NCV of 10 CFR Part 50, Appendix B, Criterion III, Design Control, for the failure of the licensees design control measures to provide for the verifying or checking of the adequacy of design of the spent fuel pool liner. Specifically, calculations involving the liner had not been verified or checked to ensure the design basis requirements of American Society of Mechanical Engineers Boiler and Pressure Vessel Code,Section III, Division 2, were included. The licensee documented this issue in the corrective action program as AR 02690744 and initiated actions to restore compliance. The inspectors determined that the failure of the calculation to include the design basis requirements was contrary to the design control requirements of 10 CFR Part 50 and was a performance deficiency. The performance deficiency was determined to be more than minor because if left uncorrected it could lead to a more significant safety concern if independent spent fuel storage installation loading was conducted. The inspectors determined the finding could be evaluated using the Significance Determination Process in accordance with IMC 0609, The Significance Determination Process for Findings AtPower, Appendix A, Exhibit 3 Barrier Integrity Screening Questions (Section D). Based on answering No to all the questions in Exhibit 3, Section D, the inspectors determined the finding to be of very low safety significance. The inspectors determined this finding affected the cross-cutting area of human performance in the aspect of design margin, where the organization operates and maintains equipment within design margins. Margins are carefully guarded and changed only through a systematic and rigorous process. Specifically, the licensee failed to ensure the SFP liner reflected the intended design margins of the design and licensing basis. (H.6) |
| Site: | Clinton  |
|---|---|
| Report | IR 05000461/2016003 Section 4OA5 |
| Date counted | Sep 30, 2016 (2016Q3) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | |
| Inspectors (proximate) | C Phillips G Edwards G Roach J Bozga J Wojewoda K Stoedter N Fields S Mischke W Schaup |
| Violation of: | 10 CFR 50 Appendix B 10 CFR 50 Appendix B Criterion III, Design Control |
| CCA | H.6, Design Margins |
| INPO aspect | WP.2 |
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Finding - Clinton - IR 05000461/2016003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Clinton) @ 2016Q3
Self-Identified List (Clinton)
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