05000483/FIN-2011005-03
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Finding | |
|---|---|
| Title | Failure to Maintain Simulator Testing in Accordance with ANSI/ANS 3.5-1998 |
| Description | The inspectors identified a finding associated with the conduct of simulator performance testing because the licensee was not testing in accordance with the standards of ANSI/ANS 3.5-1998. Specifically, the licensee did not include relief valve flow in their 2010 test of transient (10) of ANSI/ANS 3.5-1998, Appendix B, Section B3.2.1, Slow Primary System Depressurization to Saturated Condition with Pressurizer Relief or Safety Valve Stuck Open. The licensee initiated corrective action documented in Callaway Action Request 201107912. Conducting simulator performance testing that was not in accordance with the ANSI/ANS 3.5-1998 standard was a performance deficiency. The performance deficiency is more than minor because it adversely impacted the human performance attribute of the Mitigating Systems Cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Additionally, if left uncorrected, the performance deficiency could have become more significant in that not completing the required simulator testing annually can lead to not detecting and correcting errors in the simulator so that it models the actual plant correctly. Using Manual Chapter 0609, Significance Determination Process, Phase 1 worksheets, and the corresponding Appendix I, Licensed Operator Requalification Significance Determination Process, the finding was determined to have very low safety significance (green) because there was no actual event caused by not modeling the actual plant correctly. This finding has no cross-cutting aspect assigned because the cause was not representative of current licensee performancE |
| Site: | Callaway  |
|---|---|
| Report | IR 05000483/2011005 Section 1R11 |
| Date counted | Dec 31, 2011 (2011Q4) |
| Type: | Finding: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.11 |
| Inspectors (proximate) | S Hedger C Alldredge Z Hollcraft G Apgar L Ricketson K Clayton D Dumbacher L Willoughby N O'Keefe C Long A Fairbanks T Buchanan D Reinert |
| INPO aspect | |
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Finding - Callaway - IR 05000483/2011005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Callaway) @ 2011Q4
Self-Identified List (Callaway)
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