05000260/FIN-2017002-04
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Finding | |
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| Title | |
| Description | Green . A self -revealing non- cited violation (NCV) of 10 CFR Part 50, Appendix B, Criterion XVI , Corrective Action, was reviewed for the licensees failure to establish measures to assure that corrective action was taken to preclude repetition of a significant condition adverse to quality (SCAQ) . The licensee failed to correct electronic noise problems with the scram reset switch which led to a March 29, 2017, reactor scram. As an immediate corrective action, the licensee initiated more rigorous test s to identify noise vulnerabilities on Intermediate Range and Source Range Monitors . The licens ee entered this issue into their corrective action program as Condition Report (CR) 1278595. This performance deficiency wa s more -than- minor because it is associated with the equipment performance attribute of the Initiating Events Cornerstone and adversely affected the cornerstone objective in that the licensee failed to implement corrective actions to address I ntermediate Range Monitor (IRM) spiking following the May 24, 2012, reactor scram . T he finding was determined to be Green because it did not involve the loss of mitigation equipment . The inspectors determined that the finding had a cross -cutting aspect of Challenge the Unknown (H.11) with in the cross -cutting area of Human Performance because the licensee failed to res olve the unknown noise paths to ensure that scram vulnerabilities were corrected. |
| Site: | Browns Ferry  |
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| Report | IR 05000260/2017002 Section 4OA3 |
| Date counted | Jun 30, 2017 (2017Q2) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | D Dumbacher T Stephen A Ruh J Dolecki |
| Violation of: | 10 CFR 50 Appendix B |
| CCA | H.11, Challenge the Unknown |
| INPO aspect | QA.2 |
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Finding - Browns Ferry - IR 05000260/2017002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Browns Ferry) @ 2017Q2
Self-Identified List (Browns Ferry)
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