05000388/FIN-2017002-02
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Finding | |
|---|---|
| Title | Failure to Assess and Manage Risk Associated with Emergent Work |
| Description | The inspectors identified a Green, self-revealing, NCV of 10 Code of Federal Regulations (CFR) 50.65 (a)(4) because Susquehanna failed to assess and manage the increase in risk for emergent work on the Unit 1 A 125 voltage direct current (VDC) battery charger. Susquehanna entered this issue into the CAP as CR-2017-09589. Corrective actions include conducting training on the emergent risk assessment process and reinforcing the expectation that control room staff is notified prior to releasing work. The PD was more than minor because it adversely impacted the Mitigating Systems cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences, and the related attribute of equipment performance involving availability and reliability. In addition, it is similar to Example 7.e from IMC 0612, Appendix E, Examples of Minor Issues, which states that the failure to perform an adequate risk assessment when required to do so is more than minor if the overall elevated plant risk would put the plant into a high licensee-established risk category and would require risk management actions under licensee procedures. The inspectors evaluated the significance using IMC 0609, Appendix K, Maintenance Risk Assessment and Risk Management SDP and determined that this PD was of very low safety significance (Green). Specifically the PD was associated with risk management actions only and the incremental core damage probability (ICDP) was 2E-7 (<1E-6) for charger 1D613 out of service for approximately one hour.This finding had a cross-cutting aspect in the area of Human Performance, Consistent Process because individuals did not implement systematic approach to make decisions to commence work, and did not incorporate appropriate risk insights. [H.13] |
| Site: | Susquehanna  |
|---|---|
| Report | IR 05000388/2017002 Section 1R13 |
| Date counted | Jun 30, 2017 (2017Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.13 |
| Inspectors (proximate) | L Micewski T Daun J Furia P Presby D Werkheiser D Schroeder |
| Violation of: | 10 CFR 50.65 10 CFR 50.65(a)(4) |
| CCA | H.13, Consistent Process |
| INPO aspect | DM.1 |
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Finding - Susquehanna - IR 05000388/2017002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Susquehanna) @ 2017Q2
Self-Identified List (Susquehanna)
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