05000373/FIN-2015009-02
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Finding | |
|---|---|
| Title | Failure to Preform a Required 50.59 Evaluation |
| Description | The inspectors identified a Severity Level IV, NCV of Title 10, Code of Federal Regulations (CFR), Part 50.59, Changes, Tests, and Experiments, and an associated finding of very-low safety significance (Green) for the failure to perform and maintain a written evaluation to demonstrate that a calculation revision did not require a license amendment. Specifically, calculation L-003263, Volume Requirements for ADS Back-up Compressed Gas System (Bottle Banks), was revised and resulted in new required time critical operator manual actions, procedure changes, UFSAR changes, and an update to the TS Surveillance Requirements; however, a 10 CFR 50.59 evaluation was not performed. The licensee entered this finding into their CAP as IR 2528988. The inspectors determined this finding was more than minor because the finding was associated with the Mitigating Systems cornerstone attribute of design control. and affected the cornerstone objective of ensuring the capability of systems that respond to initiating events to prevent undesirable consequences (i.e., core damage). Specifically, the licensee failed to account for new required time critical operator manual actions, procedure changes, Updated Final Safety Analysis Report (UFSAR) changes, and an update to the TS Surveillance Requirements. This finding has a cross-cutting aspect in the area of Problem, Identification, and Resolution, in the area of evaluation because the licensee did not thoroughly evaluate the extent of condition of revising the design calculation Specifically, the licensee failed to evaluate revising design calculation L-003263 resulting in time critical operator manual actions, procedure changes, UFSAR changes, and an update to the TS Surveillance Requirements. |
| Site: | LaSalle  |
|---|---|
| Report | IR 05000373/2015009 Section 1R17 |
| Date counted | Sep 30, 2015 (2015Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.17 |
| Inspectors (proximate) | A Dahbur C Jackel L Smith M Jeffers R Daley R Winter |
| Violation of: | 10 CFR 50.59 Technical Specification - Procedures Technical Specification |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - LaSalle - IR 05000373/2015009 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (LaSalle) @ 2015Q3
Self-Identified List (LaSalle)
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