ENS 41157
From kanterella
Jump to navigation
Jump to search
ENS Event | |
---|---|
17:14 Oct 28, 2004 | |
Title | Emergency Sirens Inoperable |
Event Description | At 1314 EDT on 10/28/04, all 34 of the Mecklenburg County ANS sirens failed a scheduled weekly test. The silent test checks only the radio circuitry involved in actuating the sirens. This test failure was attributed to a phenomena known as 'Tropospheric Ducting,' which is essentially radio frequency interference on the frequencies utilized for siren control. At 1448 EDT on 10/28/04, the radio frequency interference had cleared and the siren test was repeated with 100% success rate. The remaining 33 sirens in the other four EPZ counties were tested satisfactorily in the same time frame.
The licensee notified the NRC Resident Inspector. |
Where | |
---|---|
Mcguire North Carolina (NRC Region 2) | |
Reporting | |
10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
Time - Person (Reporting Time:+0.53 h0.0221 days <br />0.00315 weeks <br />7.25994e-4 months <br />) | |
Opened: | Tim Johnson 17:46 Oct 28, 2004 |
NRC Officer: | Bill Gott |
Last Updated: | Oct 28, 2004 |
41157 - NRC Website
Loading map... {"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"350px","height":"250px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":6,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003EENS 41157\u003C/a\u003E - \u003Ca href=\"/McGuire\" title=\"McGuire\"\u003EMcGuire\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EEmergency Sirens Inoperable\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 41157 - McGuire\n","link":"","lat":35.43065277777778,"lon":-80.9415,"icon":"/w/images/a/a7/Duke_energy_icon.png"}],"imageoverlays":null} | |
Unit 1 | |
---|---|
Reactor critical | Not Critical |
Scram | No |
Before | Cold Shutdown (0 %) |
After | Cold Shutdown (0 %) |
Unit 2 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
WEEKMONTHYEARENS 557582022-02-25T16:33:00025 February 2022 16:33:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Technical Support Center (TSC) ENS 547692020-07-10T13:00:00010 July 2020 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Common Emergency Operations Facility Maintenance ENS 544722020-01-13T14:10:00013 January 2020 14:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Technical Support Center Power Modification ENS 534982018-07-09T04:00:0009 July 2018 04:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unplanned Loss of Technical Support Center (Tsc) Ventilation ENS 533072018-04-02T14:24:0002 April 2018 14:24:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Technical Support Center (Tsc) Modification ENS 532402018-03-01T20:55:0001 March 2018 20:55:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unplanned Loss of Technical Support Center ENS 522192016-09-02T23:22:0002 September 2016 23:22:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Spent Fuel Pool Area Radiation Monitor Lost Signal ENS 521802016-08-15T14:30:00015 August 2016 14:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service Due to Facility Upgrade ENS 521452016-08-02T10:30:0002 August 2016 10:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation Out-Of-Service ENS 518282016-03-28T23:00:00028 March 2016 23:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Power to Meteorological Tower ENS 500952014-05-08T08:29:0008 May 2014 08:29:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of 34 Emergency Sirens ENS 500622014-04-27T20:00:00027 April 2014 20:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out-Of-Service ENS 482762012-09-05T14:40:0005 September 2012 14:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service Due to Preventative Maintenance on Hvac System ENS 482662012-09-02T16:00:0002 September 2012 16:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Outage of Emergency Operations Facility ENS 484622009-08-01T04:00:0001 August 2009 04:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Historical Unavailability of Technical Support Center Ventilation Due to Maintenance ENS 443392008-07-07T18:22:0007 July 2008 18:22:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Failure of the Alert Notification System ENS 422082005-12-15T18:04:00015 December 2005 18:04:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of 38 Out of 67 Emergency Sirens Due to Weather ENS 412882004-12-23T19:10:00023 December 2004 19:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications ENS 411572004-10-28T17:14:00028 October 2004 17:14:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Sirens Inoperable 2022-02-25T16:33:00 | |
Retrieved from "https://kanterella.com/w/index.php?title=ENS_41157&oldid=92970"