05000445/FIN-2014004-02
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Finding | |
|---|---|
| Title | Inadequate Acceptance Criteria for Inservice Testing of Auxiliary Feedwater Discharge Check Valves |
| Description | The inspectors identified a non-cited violation of 10 CFR Part 50, Appendix B, Criterion XI, Test Control, for the failure to incorporate adequate acceptance limits in a written procedure to demonstrate components will perform satisfactorily. The licensee used acceptance criteria for inservice testing that did not demonstrate successful performance of the test. Specifically, the licensee failed to use appropriate acceptance limits which would have identified a failed check valve when testing auxiliary feedwater discharge check valves. The licensee revised the inadequate test procedure. The licensee entered the finding into the corrective action program as Condition Report CR-2014-010082. The licensees failure to incorporate adequate acceptance limits in a written procedure to demonstrate components perform satisfactorily was a performance deficiency. The finding 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 of systems that respond to initiating events to prevent undesirable consequences. Using Inspection Manual Chapter 0609, Attachment 04, Initial Characterization of Findings, and Appendix A, Exhibit 2, Mitigating Systems Screening Questions, the finding was determined to be of very low safety significance (Green) because although the finding was a deficiency affecting the design or qualification of a mitigating system, the system maintained its operability and functionality. The inspectors determined that the finding was not representative of current licensee performance and no cross-cutting aspect was assigned. |
| Site: | Comanche Peak  |
|---|---|
| Report | IR 05000445/2014004 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) | R Kumana W Walker G Guerra J Kramer J Melfi M Wilk |
| Violation of: | 10 CFR 50 Appendix B Criterion XI |
| INPO aspect | |
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Finding - Comanche Peak - IR 05000445/2014004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Comanche Peak) @ 2014Q3
Self-Identified List (Comanche Peak)
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