05000321/FIN-2017003-01
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Finding | |
|---|---|
| Title | Installation of Non-Conforming RPS Equipment |
| Description | An NRC-identified non-cited violation (NCV) of 10 CFR 50, Appendix B, Criterion III, Design Control was identified for failure to translate regulatory requirements and the design basis of the scram discharge volume (SDV) thermal probes into the System Evaluation Document, which resulted in the installation of a nonsafety-related terminal board in the reactor protection system (RPS). As an immediate corrective action the licensee installed fully qualified equipment. The failure to classify reactor protection system components as safety-related in accordance with design documents was a performance deficiency. The violation was entered into the licensee's corrective action program as CR 10344772.The performance deficiency was more than minor because it affected the design control attribute of the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the ensured reliability of the RPS system wasadversely affected because the installed components were not qualified for the application. The team used IMC 0609, Attachment 4, Initial Characterization of Findings, issued June 19, 2012, for Mitigating Systems, and IMC 0612, Appendix A, The Significance Determination Process for Findings At-Power, issued June 19, 2012, and determined the finding to be of very low safety significance (Green), because the finding was a deficiency affecting the design or qualification of a mitigating SSC, and the SSC maintained its operability. The inspectors determined that this finding did not have an associated cross-cutting aspect because this finding did not occur within the previous three years and is not reflective of current licensee performance. |
| Site: | Hatch  |
|---|---|
| Report | IR 05000321/2017003 Section 1R18 |
| Date counted | Sep 30, 2017 (2017Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.18 |
| Inspectors (proximate) | D Hardage A Ruh D Retterer J Munday |
| Violation of: | 10 CFR 50 Appendix B Criterion III, Design Control |
| INPO aspect | |
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Finding - Hatch - IR 05000321/2017003 | |||||||||||||||||||||||||||||||||||||||||
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Finding List (Hatch) @ 2017Q3
Self-Identified List (Hatch)
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