05000397/FIN-2011005-04
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Failure to Follow Earthquake Abnormal Procedure |
| Description | The inspectors identified a non-cited violation of Technical Specification 5.4.1.a for the licensee\\\'s failure to follow the abnormal procedure for earthquakes. Specifically, the licensee failed to follow Procedure ABN-Earthquake, Revision 6, by not recalibrating seismic instruments within 30 days of two earthquakes near the site that occurred on September 3, and October 14, 2011. Consequently, several seismic instruments were not all functional following the September 3, 2011 earthquake, and the same seismic monitoring devices were not functional during the October 14, 2011 earthquake, which complicated post-earthquake evaluation. Following identification of this issue, the licensee performed calibrations of all seismic instruments on November 2, 2011. This issue was entered into the licensee\\\'s corrective action program as Action Request AR 00251987. The finding was more than minor because it affected the human performance attribute of the Emergency Preparedness Cornerstone objective to ensure the licensee is capable of implementing adequate measures to protect the health and safety of the public in the event of a radiological emergency. Specifically, seismic instrumentation is required following a seismic event to evaluate the necessity of an emergency declaration and to determine the impact of strong motion on structures, systems and components or the need for a reactor shutdown. Using Inspection Manual Chapter 0609, Appendix B, Emergency Preparedness Significance Determination Process the inspectors determined this finding to be of very low safety significance (Green) because while some seismic instruments were non-functional and that did complicate the operators response to the October 14, 2011 earthquake, the non-functional instruments did not result in a loss of planning standard or risk-significant planning standard function. The inspectors determined that this finding had a cross-cutting aspect in the area of human performance associated with the work control component because the licensee failed to appropriately plan work activities by incorporating the need for planned contingencies such as those needed to recalibrate seismic instruments following an earthquake H.3(a) |
| Site: | Columbia  |
|---|---|
| Report | IR 05000397/2011005 Section 4OA3 |
| Date counted | Dec 31, 2011 (2011Q4) |
| Type: | NCV: Green |
| cornerstone | Emergency Prep |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | P Elkmann W Walker J Groom M Hayes |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
| ' | |
Finding - Columbia - IR 05000397/2011005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Columbia) @ 2011Q4
Self-Identified List (Columbia)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||