ENS 49978
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ENS Event | |
|---|---|
20:58 Mar 31, 2014 | |
| Title | Loss of Six Emergency Sirens |
| Event Description | At approximately 15:58 hours (CDT) on March 31, 2014, Waterford 3 was informed that five emergency sirens were inoperable during the performance of a monthly siren inspection. Subsequent review during preparation of this notification has identified an additional one inoperable siren, which brings the total number of inoperable sirens to six. There are a total of seventy-three sirens distributed among two parishes (counties). The loss of these six sirens for more than one hour is considered a major loss of offsite response capability and is reported pursuant to 10 CFR 50.72(b)(3)(xiii).
The affected parish Emergency Operations Center was notified of the condition and it was confirmed that they will use the preplanned alternative method of Route Alerting for the affected areas until notified that repairs to the sirens have been completed. Waterford 3 has initiated preparations to repair the sirens, with actual repairs expected to commence tomorrow. The performance of the monthly siren inspection will continue during daylight hours today and resume tomorrow. There is no effect on the plant. This issue has been entered into the Waterford 3 Corrective Action Program and appropriate corrective actions will be developed. The NRC Resident Inspector and local agencies were notified. |
| Where | |
|---|---|
Waterford  Louisiana (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-0.47 h-0.0196 days <br />-0.0028 weeks <br />-6.43806e-4 months <br />) | |
| Opened: | Patrick Tumy 20:30 Mar 31, 2014 |
| NRC Officer: | Steve Sandin |
| Last Updated: | Mar 31, 2014 |
| 49978 - NRC Website
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Unit 3 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 554432021-08-31T18:40:00031 August 2021 18:40:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications Capability ENS 530572017-11-07T09:37:0007 November 2017 09:37:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Inbound Commercial Lines and Fts Lines to Facility ENS 512952015-08-06T17:00:0006 August 2015 17:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Non-Functional Emergency Sirens ENS 499782014-03-31T20:58:00031 March 2014 20:58:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Six Emergency Sirens ENS 499252014-03-17T12:37:00017 March 2014 12:37:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Sirens ENS 482552012-08-30T11:20:00030 August 2012 11:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Operations Facility and Emergency Notification System Phone Out of Service ENS 482512012-08-29T20:30:00029 August 2012 20:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Evacuation Route Unavailable Due to Flooding from Hurricane Isaac ENS 456722010-02-02T20:00:0002 February 2010 20:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Primary Eof Unavailable Due to Failure of Ventilation Damper Position Indication ENS 426722006-06-28T19:15:00028 June 2006 19:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss and Subsequent Restoration of Electrical Power to the Emergency Operations Facility 2021-08-31T18:40:00 | |
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