05000373/FIN-2016002-01
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Finding | |
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| Title | Partial-Length Rods Exceeded Burnup Limit in Design Basis Method of Analysis |
| Description | A finding of very low safety significance and a Severity Level IV NCV of Title 10 of the Code of Federal Regulations (CFR) 50.59, Changes, Tests, and Experiments, was identified by the inspectors for the licensees failure to provide a written evaluation which provided the basis for the determination that exceeding the peak burnup limit of 62 gigawatt days per metric ton of uranium (GWd/MTU) for fuel did not require a license amendment. Specifically, the licensee failed to provide a basis supporting the application of an alternate burnup limit, which exceeded their current licensing basis limits to the radiological consequence analysis or alternate source term (AST) analysis. The licensee entered this issue into the corrective action program (CAP) as Action Request (AR) 02537519 and AR 2537664. Regarding corrective actions, the effected fuel bundles in Unit 1 were removed from the vessel following the last refueling outage in the first quarter of 2016. As for Unit 2, the licensee planned to restore compliance prior to the burnup exceeding the 62 GWd/MTU limit. The performance deficiency was determined to be more than minor because the inspectors could not reasonably determine that the activity of operating beyond limits documented in the UFSAR would not have required prior NRC approval. The inspectors answered No to all of the Barrier Integrity screening questions. Therefore, this issue screens as having very low safety significance (Green). Because violations of 10 CFR 50.59 potentially impede or impact the regulatory process, they are dispositioned using the traditional enforcement process. In accordance with Section 6.1.d.2 of the NRC Enforcement Policy, this violation was categorized as Severity Level IV because the finding screened as having very low safety significance. This finding has a cross-cutting aspect in the area of Human Performance, Design Margins because the licensee did not operate and maintain equipment within design margins [IMC 0310 H.6]. |
| Site: | LaSalle  |
|---|---|
| Report | IR 05000373/2016002 Section 1R18 |
| Date counted | Jun 30, 2016 (2016Q2) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.18 |
| Inspectors (proximate) | B Dickson D Chyu G Hansen J Cassidy J Robbins R Ruiz R Zuffa |
| Violation of: | 10 CFR 50.59 |
| CCA | H.6, Design Margins |
| INPO aspect | WP.2 |
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Finding - LaSalle - IR 05000373/2016002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (LaSalle) @ 2016Q2
Self-Identified List (LaSalle)
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