ENS 44027
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ENS Event | |
|---|---|
07:00 Mar 4, 2008 | |
| Title | Planned Maintenance on Mlshlcot Substation by Wps Results in Greater than 50% Siren Coverage Loss |
| Event Description | On March 4, 2008, at 0100 CST, ten emergency notification system sirens in the Kewaunee Power Station Emergency Planning Zone (one in Kewaunee County, nine in Manitowoc County) were de-energized due to a planned power outage. The loss of power to these emergency notification sirens resulted in a lost population coverage of 51.2%. As a result, this event is being reported under 10 CFR 50.72(b)(3)(xiii) and guidance in NUREG-1022 as a major loss of off-site communications capability.
The expected duration of the planned power outage is 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. Kewaunee and Manitowoc County Emergency Management agencies have already established appropriate contingency measures for the planned loss of the emergency notification system. Contingency measures include route alerting and an available plane with loud speaker for the areas affected by the power outage. The State of Wisconsin and the Federal Emergency Management Agency were previously informed of this planned outage. The NRC Resident Inspector has been notified. |
| Where | |
|---|---|
Kewaunee  Wisconsin (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-4.73 h-0.197 days <br />-0.0282 weeks <br />-0.00648 months <br />) | |
| Opened: | Andrew Smolinski 02:16 Mar 4, 2008 |
| NRC Officer: | Ryan Alexander |
| Last Updated: | Mar 4, 2008 |
| 44027 - NRC Website | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 503822014-08-20T12:47:00020 August 2014 12:47:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Service Water Return Radiation Monitor Nonfunctional for Planned Maintenance ENS 502972014-07-23T12:48:00023 July 2014 12:48:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation System Removed from Service for Planned Maintenance ENS 501312014-05-22T12:08:00022 May 2014 12:08:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on the Auxiliary Building Service Water Return Monitor ENS 499292014-03-19T12:45:00019 March 2014 12:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Radiation Monitor Taken Out of Service for Planned Maintenance ENS 498452014-02-20T12:55:00020 February 2014 12:55:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Auxiliary Building Service Water Return Radiation Monitor Removed from Service for Planned Maintenance ENS 497712014-01-28T13:34:00028 January 2014 13:34:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Service Water Effluent Radiation Monitor Non-Functional Due to Preplanned Maintenance ENS 497482014-01-21T12:40:00021 January 2014 12:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service for Planned Maintenance ENS 494992013-11-04T13:28:0004 November 2013 13:28:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on the Particulate, Iodine, and Noble Gas Radiation Monitor ENS 493652013-09-20T11:45:00020 September 2013 11:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Auxiliary Building Special Particulate Iodine Noble Gas (Sping) Maintenance ENS 492472013-08-07T06:00:0007 August 2013 06:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Power to Emergency Sirens Due to Severe Weather ENS 492232013-07-30T11:35:00030 July 2013 11:35:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation Out of Service for Pre-Planned Maintenance ENS 492022013-07-18T13:30:00018 July 2013 13:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Assessment Capability Due to Planned Maintenance ENS 490882013-06-04T13:30:0004 June 2013 13:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Assessment Capability Due to Planned Maintenance ENS 490262013-05-12T22:55:00012 May 2013 22:55:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Service Water Effluent Lines Non Functional ENS 489202013-04-13T16:09:00013 April 2013 16:09:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Service Water System Effluent Line Non-Functional ENS 489002013-04-09T12:30:0009 April 2013 12:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Auxiliary Building Vent Monitor Out of Service for Planned Maintenance ENS 488912013-04-05T12:30:0005 April 2013 12:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Assessment Capability Due to Planned Maintenance ENS 488812013-04-03T13:00:0003 April 2013 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Auxiliary Building Special Particulate Iodine Noble Gas Monitor Out of Service ENS 488302013-03-19T13:30:00019 March 2013 13:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tsc Ventilation Removed from Service for Planned Maintenance ENS 486262012-12-26T15:22:00026 December 2012 15:22:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Radiation Monitor Used for Assessment and Response Inoperable Due to Pre-Planned Maintenance ENS 486052012-12-19T14:00:00019 December 2012 14:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance Affecting the Ability to Assess an Emergency Classification ENS 483972012-10-10T21:33:00010 October 2012 21:33:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Reduced Radiation Monitoring Capability for Auxiliary Building and Containment Vent Stacks ENS 483642012-10-01T12:40:0001 October 2012 12:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out-Of-Service for Planned Maintenance ENS 480162012-06-12T16:21:00012 June 2012 16:21:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Taken Out of Service for Maintenance ENS 466662011-03-10T21:49:00010 March 2011 21:49:00 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Inadvertant Opening a Substation Breaker Causing Loss of Station Power ENS 465272011-01-10T15:21:00010 January 2011 15:21:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unavailability of Tsc and Eof Functions Due to Scheduled Maintenance ENS 458832010-04-30T08:00:00030 April 2010 08:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss Safety Parameter Display System (Spds) Due to Computer Problems ENS 455512009-12-09T14:00:0009 December 2009 14:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Blizzard Results in Greater than 50% Siren Coverage Loss ENS 440272008-03-04T07:00:0004 March 2008 07:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on Mlshlcot Substation by Wps Results in Greater than 50% Siren Coverage Loss ENS 413092005-01-06T13:00:0006 January 2005 13:00:00 Information Only, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Modification to Process Computer That Will Impact Erds and Spds 2014-08-20T12:47:00 | |
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