05000445/FIN-2013002-04
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Failure to Identify Inadequate Auxiliary Feedwater Valve Maintenance |
| Description | The inspectors identified a non-cited violation of 10 CFR Part 50, Appendix B, Criterion XVI, for the failure to identify and correct a condition adverse to quality. Specifically, the licensee failed to identify and correct an inadequate auxiliary feedwater test line isolation valve preventative maintenance document. As a result, the valve was difficult to operate and was not fully closed following pump testing, causing auxiliary feedwater flow to be diverted away from the steam generators during a plant shutdown. The licensee entered the finding in the corrective action program as Condition Report CR-2013-003095. The licensees failure to identify and correct the inadequate preventative maintenance document that led to an auxiliary feedwater flow diversion 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 capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the inadequate maintenance resulted in auxiliary feedwater flow diverted away from the steam generators during a plant shutdown. Using NRC Manual Chapter 0609, Appendix A, The Significance Determination Process for Findings At-Power, the finding was determined to be of very low safety significance because the finding was not a design or qualification deficiency; did not represent an actual loss of safety function of a system or train; and did not result in the loss of one or more trains of non-technical specification trains of equipment. The finding had a problem identification and resolution cross-cutting aspect associated with the corrective action program, in that, the licensee failed to have a low threshold for identifying issues. |
| Site: | Comanche Peak  |
|---|---|
| Report | IR 05000445/2013002 Section 4OA2 |
| Date counted | Mar 31, 2013 (2013Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | W Walker B Tindell C Osterholtz J Kramer N Hernandez D Strickland |
| Violation of: | 10 CFR 50 Appendix B Criterion XVI |
| CCA | P.1, Identification |
| INPO aspect | PI.1 |
| ' | |
Finding - Comanche Peak - IR 05000445/2013002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Comanche Peak) @ 2013Q1
Self-Identified List (Comanche Peak)
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||