05000260/FIN-2017004-01
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Finding | |
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Title | Inadequate Determination of Operability for the HPCI System |
Description | Two examples of an NRC-identified NCV of 10 CFR Part 50, Appendix B, Criterion V, "Instructions, Procedures, and Drawings" were identified for the licensee's failure to properly implement operability evaluation requirements for degraded High Pressure Coolant Injection (HPCI) components. Specifically, from September 23 to September 28, 2017, the operability evaluations for degraded Unit 2 and 3 HPCI injection valves 2/3- FCV-73-44 did not provide reasonable assurance of operability as per the sites operability review procedures.The performance deficiency was determined to be more-than-minor because it impacted the Mitigating Systems cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events. As an immediate corrective action, the licensee later performed maintenance to open and inspect these valves. Subsequently the licensee initiated condition reports and a Performance Assessment Worksheet to assess the training for such evaluations. The violation was entered into the licensee's corrective action program (CAP) as CR 1341458. The inspectors determined that the finding had a cross-cutting aspect of Evaluation in the Problem Identification and Resolution area [P.2], because the organization concluded Technical Specification operability prior to thoroughly investigating these issues commensurate with their potential safety significance. |
Site: | Browns Ferry |
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Report | IR 05000260/2017004 Section 1R15 |
Date counted | Dec 31, 2017 (2017Q4) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | NRC identified |
Inspection Procedure: | IP 71111.15 |
Inspectors (proximate) | D Dumbacher M Kirk A Ruh N Hobbs R Patterson M Riley M Schwieg D Lanyi A Masters |
Violation of: | 10 CFR 50 Appendix B Criterion V |
CCA | P.2, Evaluation |
INPO aspect | PI.2 |
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Finding - Browns Ferry - IR 05000260/2017004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Browns Ferry) @ 2017Q4
Self-Identified List (Browns Ferry)
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