ENS 41307: Difference between revisions
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| event date = 01/04/2005 12:30 CST | | event date = 01/04/2005 12:30 CST | ||
| last update date = 01/18/2005 | | last update date = 01/18/2005 | ||
| title = Site Had 86.2% | | title = Site Had 86.2% of Their Emergency Alert Sirens Inoperable | ||
| event text = At 1230, 1/4/05, while performing a weekly test of alert sirens utilized in the prompt public notification system, it was determined that the twenty five sirens actuated by the Callaway County Emergency Operation Center (EOC) would not operate. There are a total of twenty nine alert sirens distributed among four counties and failure of the twenty five sirens actuated by Callaway County equates to a loss of 86.2 % of the alert sirens. During the period when the faulted sirens were unavailable, the back-up automated telephone calling service Community Alerting Network System (CANS) and the tone alert radio system were available and the Callaway County EOC was instructed to perform local route notifications as a backup method of notification. At 1345, 1/4/05, the twenty five Callaway County actuated sirens were restored and all twenty nine alert sirens were tested satisfactorily. | | event text = At 1230, 1/4/05, while performing a weekly test of alert sirens utilized in the prompt public notification system, it was determined that the twenty five sirens actuated by the Callaway County Emergency Operation Center (EOC) would not operate. There are a total of twenty nine alert sirens distributed among four counties and failure of the twenty five sirens actuated by Callaway County equates to a loss of 86.2 % of the alert sirens. During the period when the faulted sirens were unavailable, the back-up automated telephone calling service Community Alerting Network System (CANS) and the tone alert radio system were available and the Callaway County EOC was instructed to perform local route notifications as a backup method of notification. At 1345, 1/4/05, the twenty five Callaway County actuated sirens were restored and all twenty nine alert sirens were tested satisfactorily. | ||
Initial investigation indicates a computer software problem related to the feedback system. This caused a failure to occur in a circuit at the Callaway County radio tower and in the back-up manual system. The system vendor is researching the failure experienced and expects to provide a failure determination report by 1/5/05. Final corrective actions will be developed based upon the information provided by the vendor. | Initial investigation indicates a computer software problem related to the feedback system. This caused a failure to occur in a circuit at the Callaway County radio tower and in the back-up manual system. The system vendor is researching the failure experienced and expects to provide a failure determination report by 1/5/05. Final corrective actions will be developed based upon the information provided by the vendor. | ||
Latest revision as of 22:21, 1 March 2018
| Where | |
|---|---|
Callaway  Missouri (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+0.03 h0.00125 days <br />1.785714e-4 weeks <br />4.1094e-5 months <br />) | |
| Opened: | James Milligan 18:32 Jan 4, 2005 |
| NRC Officer: | Chauncey Gould |
| Last Updated: | Jan 18, 2005 |
| 41307 - NRC Website
| |