05000483/FIN-2014007-04
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Finding | |
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| Title | Failure to Establish Essential Service Water Pump House Supply Fan Testing. |
| Description | The team identified a Green, non-cited violation of 10 CFR Part 50, Appendix B, Criterion XI, Test Control, which states, in part, A test program shall be established to assure that all testing required to demonstrate that structures, systems, and components will perform satisfactorily in service is identified and performed in accordance with written test procedures which incorporate the requirements and acceptance limits contained in applicable design documents. Specifically, from 1999 to April 17, 2014, the licensee failed to establish a test program to demonstrate that the air flows for essential service water pump house supply fans CGD01A and CGD01B would keep the pump house room temperatures at or below the maximum allowable temperatures when the essential service water pumps are operating during a design basis accident. In response to this issue, the licensee verified that immediate operability was not a concern since the measured parameters (through eMAX and Motor Circuit Evaluator-+ testing) did not indicate poor health or unsatisfactory performance when compared to the fan curve. This finding was entered into the licensee's corrective action program as Callaway Action Request (CAR) 201402698. The team determined that the failure to establish a test program to demonstrate that the air flows for the essential service water pump house supply fans were sufficient to keep room temperatures maintained at or below the design basis requirements was a performance deficiency. This finding was more than minor because it adversely affected the Mitigating Systems Cornerstone attribute of Equipment Performance and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the capability of the essential service water pump house supply fans to perform their safety function of providing 30,000 cubic feet per minute of air flow was not ensured. In accordance with Inspection Manual Chapter 0609, Appendix A, The Significance Determination Process (SDP) for Findings at Power, dated June 19, 2012, Exhibit 2, Mitigating Systems Screening Questions, the issue screened as having very low safety significance (Green) because it was a design or qualification deficiency that did not represent a loss of operability or functionality; did not represent an actual loss of safety function of the system or train; did not result in the loss of one or more trains of non-technical specification equipment; and did not screen as potentially risk-significant due to seismic, flooding, or severe weather. This finding did not have a cross-cutting aspect because the most significant contributor did not reflect current licensee performance. |
| Site: | Callaway  |
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| Report | IR 05000483/2014007 Section 1R21 |
| Date counted | Jun 30, 2014 (2014Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | B Correll C Baron C Hale G Nicely J Braisted R Kopriva S Hedger T Farnholtz |
| Violation of: | 10 CFR 50 Appendix B Criterion XI |
| INPO aspect | |
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Finding - Callaway - IR 05000483/2014007 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Callaway) @ 2014Q2
Self-Identified List (Callaway)
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