05000461/FIN-2014004-03
Finding | |
|---|---|
| Title | Failure to Establish a Surveillance Procedure for Reactor Core Isolation Cooling Pump due to Unacceptable Preconditioning |
| Description | The inspectors identified a Green finding and an associated non-citied violation of Technical Specification 5.4.1.a, Procedures, for the failure to establish a surveillanc
procedure to test the Reactor Core Isolation Cooling (RCIC) system without unacceptable preconditioning. Specifically, procedure CPS 9054.01C002, RCIC High Pressure Operability Checks, Revision 8, allows draining of the RCIC exhaust drain pot prior to the surveillance run. This action constitutes unacceptable preconditioning because it could make it difficult to determine whether the system would perform its intended function during an event in which the system might be needed. The licensee documented this issue in the CAP as IR 02386704 and made changes to the procedure to ensure inadequate preconditioning does not occur. The inspectors determined that the failure to establish a surveillance procedure to test the RCIC system without unacceptable preconditioning is a performance deficiency. The performance deficiency was more than minor because it was associated with the procedure quality attribute of the mitigating systems cornerstone and adversely affected the cornerstone objective to ensure the availability, reliability and capability to response to initiating events to prevent undesirable consequences and is therefore a finding. Using IMC 0609, Attachment 4, Initial Characterization of Findings, and Appendix A, The Significance Determination Process for Findings at Power, the finding was screened against the Mitigating Systems cornerstone and determined to be of very low safety significance (Green) because the finding was/did not: 1) a deficiency affecting the design or qualification of a mitigating structure, system or component, 2) represent a loss of system and/or function, 3) represent an actual loss of function of a single train for greater than its technical specification allowed outage time, 4) represent an actual loss of function of one or more non-technical specification trains of equipment designated as high safetysignifican for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and 5) did not involve the loss or degradation of equipment or function specifically designed to mitigate a seismic, flooding or severe weather event. The inspectors determined this finding affected the cross-cutting area of problem identification and resolution in the aspect of operating experience where the organization systematically and effectively collects, evaluates and implements relevant internal and external operating experience in a timely manner. Specifically, the licensee considered the impact of the operating experience for surveillance testing, but did not consider its impact during normal plant operation [P.5]. |
| Site: | Clinton  |
|---|---|
| Report | IR 05000461/2014004 Section 1R22 |
| Date counted | Sep 30, 2014 (2014Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.22 |
| Inspectors (proximate) | M Holmberg R Elliott R Ng S Bell S Mischke W Schaup C Lipa E Sanchez Santiago J Beavers |
| Violation of: | Technical Specification - Procedures Technical Specification |
| CCA | P.5, Operating Experience |
| INPO aspect | CL.1 |
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Finding - Clinton - IR 05000461/2014004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Clinton) @ 2014Q3
Self-Identified List (Clinton)
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