Finding | |
|---|---|
| Title | Failure to perform 10 CFR 50.59 evaluation for compensatory measures associated with stagnant, inactive loop |
| Description | The inspectors identified an unresolved item related to implementation of 10 CFR 50.59, Evaluations Changes, Tests and Experiments, for the licensees failure to perform an adequate evaluation for compensatory measures for a stagnant, inactive loop. The inspectors identified an unresolved item related to implementation of 10 CFR 50.59, Evaluations Changes, Tests and Experiments, for the licensees failure to perform an adequate evaluation for compensatory measures for a stagnant, inactive loop. The licensee enacted compensatory measures to support atmospheric dump valve/turbine-driven AFW pump operability due to an issue identified for natural circulation cooldown with a faulted steam generator (i.e., inactive loop). A reduction in the Technical Specification 3.4.16 dose equivalent iodine (DEI) limit (from 1Ci/gm to 0.4Ci/gm) was imposed without a 10 CFR 50.59 evaluation and/or license amendment. Specifically, the licensee did not consider the compensatory measure of reducing Technical Specification 3.4.16 limits on DEI-131 as a change to technical specifications.The licensee considered this a temporary action that did not meet the intent of 10 CFR 50.90 for a technical specification change. |
| Site: | Callaway  |
|---|---|
| Report | IR 05000483/2018003 Section 1R17 |
| Date counted | Sep 30, 2018 (2018Q3) |
| Type: | URI: |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.17 |
| Inspectors (proximate) | D Bradley S Janicki S Alferink J Drake L Brookhart P Elkmann N Hernandez C Newport E Simpson C Stott N Taylor |
| INPO aspect | |
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Finding - Callaway - IR 05000483/2018003 | |||||||||||||||||||||||||||||||||||||||
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Finding List (Callaway) @ 2018Q3
Self-Identified List (Callaway)
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