05000313/FIN-2016007-12
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Failure to Perform Predictive Maintenance on Safety-Related Medium-Voltage Switchgear |
| Description | The team identified a Green finding for the licensees failure to fully implement procedure EN-DC-310, Predictive Maintenance Program, Revision 7. Specifically, the licensee failed to perform predictive maintenance-related thermography on medium-voltage safety-related electrical switchgear. The team identified that the predictive maintenance equipment list appropriately included the medium-voltage switchgear as components in the predictive maintenance program. However, the monitoring was not being scheduled or performed. The licensees corrective actions included performing an operability determination and determining that there was no impact to the performance of the switchgear, creating tasks to perform thermography, and documenting the issue in the corrective action program as condition report CR-ANO-C-2016-00571. The failure to perform predictive maintenance on safety-related medium-voltage switchgear as required by procedure EN-DC-310 was a performance deficiency. The performance deficiency was determined to be more than minor because it was associated with the equipment performance attribute of the Mitigating Systems cornerstone and adversely affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, degradation of safety-related medium voltage switchgear could go unidentified for extended periods, reducing system reliability. The finding was evaluated using Inspection Manual Chapter 0609, Significance Determination Process, Attachment 0609.04, Initial Characterization of Findings, and Appendix A, The Significance Determination Process (SDP) for Findings At-Power, Exhibit 2 Mitigating Systems Screening Questions, dated June 19, 2012. The team determined the finding was of very low safety significance (Green) because it did not represent an actual loss of function of at least a single train for greater than its technical specification allowed outage time, and did not involve the loss or degradation of equipment or function specifically designed to mitigate a seismic, flooding, or severe weather initiating event. This finding had a problem identification and resolution cross-cutting aspect of Identification because the licensee did not identify issues completely, accurately, and in a timely manner. Specifically, the licensee did not identify that their implementation of the Predictive Maintenance Program did not appropriately address safety-related medium-voltage switchgear as requiring periodic thermography inspections [P.1]. |
| Site: | Arkansas Nuclear  |
|---|---|
| Report | IR 05000313/2016007 Section 4OA4 |
| Date counted | Mar 31, 2016 (2016Q1) |
| Type: | Finding: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 95003 |
| Inspectors (proximate) | B Correll C Osterholtz D Betancourt D Lackey D Willis E Duncan G Hansen J Brand J Dixon J Mateychick L Mckown M Holmberg M Keefe M Phalen N O'Keefe P Mckenna R Alexander R Deese R Kopriva R Kumana S Graves S Morrow S Rich S Smith T Hartman W Sifre Z Hollcraft |
| CCA | P.1, Identification |
| INPO aspect | PI.1 |
| ' | |
Finding - Arkansas Nuclear - IR 05000313/2016007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Arkansas Nuclear) @ 2016Q1
Self-Identified List (Arkansas Nuclear)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||