05000461/FIN-2014004-05
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Finding | |
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| Title | |
| Description | The inspectors identified a Severity Level IV non-cited violation of 10 Code of Federal Regulations (CFR) 50.71(e), Periodic Update of the Final Safety Analysis Report, and an associated Green finding for the licensees failure to update the report with a description of the basis for the steam dryer (SD) structural integrity submitted to the NRC in support of an extended power uprate license amendment. Specifically, the licensee did not update Section 3.9.5.1.1.9, Steam Dryers, of the Updated Safety Analysis Report (USAR) to include analysis and inspections of the steam dryer each refueling outage that provide the basis for steam dryer structural integrity. Consequently, the licensee had not completed an inspection of the steam dryer during the most recent refueling outage. The licensee entered this issue into the corrective action program (CAP) as issue report (IR) 02223135 and initiated actions to evaluate the Updated Safety Analysis Report for revision to include description of the structural integrity function of the steam dryer
The inspectors determined that the licensees failure to update the USAR with the basis for steam dryer structural integrity submitted to the NRC was a performance deficiency. The performance deficiency was determined to be more than minor in accordance wit IMC 0612, "Power Reactor Inspection Reports," Appendix B, "Issue Screening," date September 7, 2012, because, if left uncorrected, the performance deficiency would hav the potential to lead to a more significant safety concern and is therefore a finding. Failur to update the Updated Safety Analysis Report with the basis for steam dryer structura integrity could result in a failure to maintain the structural integrity of the steam dryer Specifically, insufficient steam dryer inspections could result in failure to detect structurally significant cracking and result in a steam dryer failure which generates debris that adversely affects the function of safety-related components such as the main stea isolation valves (MSIVs). Additionally, the failure to update the USAR with the basis fo steam dryer structural integrity was more than minor because it was associated with th Initiating Event cornerstone attribute of equipment performance and adversely affected the cornerstone objective to limit the likelihood of events that upset plant stability and challenge critical safety functions. Using IMC 0609, Attachment 4, Initial Characterization of Findings, and Appendix A The Significance Determination Process for Findings at Power, the finding was screened against the Initiating Events cornerstone and determined to be of very low safety significance (Green) because the finding did not cause a reactor trip and the loss of mitigating equipment relied upon to transition from the onset of the trip to a stable condition. The performance deficiency associated with this finding did not reflect current licensee performance; therefore, no cross cutting aspect was identified with this finding. In accordance with Section 6.1.d.3 of the NRC Enforcement Policy, this violation was categorized as Severity Level IV because the licensees failure to update the USAR as required by 10 CFR 50.71(e) had not yet resulted in any unacceptable change to the facility or procedures. |
| Site: | Clinton  |
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| Report | IR 05000461/2014004 Section 4OA2 |
| Date counted | Sep 30, 2014 (2014Q3) |
| Type: | TEV: Severity level IV |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | M Holmberg R Elliott R Ng S Bell S Mischke W Schaup C Lipa E Sanchez Santiago J Beavers |
| Violation of: | 10 CFR 50.71(e) 10 CFR 50.71 |
| INPO aspect | |
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Finding - Clinton - IR 05000461/2014004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Clinton) @ 2014Q3
Self-Identified List (Clinton)
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