ENS 48141
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ENS Event | |
|---|---|
02:20 Jul 27, 2012 | |
| Title | Loss of Ac Power to the Emergency Operations Facility |
| Event Description | At 2120 [CDT] [on 07/26/12], a loss of AC power to the Emergency Operations Facility (EOF) occurred effecting emergency response capability. The Technical Support Center (TSC) remained available. In the event of on emergency declaration requiring an EOF, the emergency Response Organization (ERO) would have been directed to report to the Backup EOF.
Assessment capability via SPDS was not lost during this time period and communications equipment also remained available. Coincident with no local offsite power being available, the backup diesel generator was unable to supply AC power to the facility due to an overvoltage condition present on the transfer switch. No power was available from the time period of 2120 [CDT] to 2133 [CDT] when local offsite power was restored to the building. This notification is being made in accordance with 10 CFR 50.12(b)(3)(xiii) due to the unavailability of an emergency response facility. The licensee has notified the NRC Resident Inspector. |
| Where | |
|---|---|
Arkansas Nuclear  Arkansas (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-1.85 h-0.0771 days <br />-0.011 weeks <br />-0.00253 months <br />) | |
| Opened: | James Crabill 00:29 Jul 27, 2012 |
| NRC Officer: | John Shoemaker |
| Last Updated: | Jul 27, 2012 |
| 48141 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 540732019-05-19T23:09:00019 May 2019 23:09:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of the Safety Parameter Display System Due to Inverter Failure ENS 517852016-03-10T14:40:00010 March 2016 14:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Seismic Alarm Function Not Available During Semi-Annual Seismic System Functional Test ENS 515432015-11-17T17:11:00017 November 2015 17:11:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on Seismic System Functional Test ENS 513402015-08-24T15:20:00024 August 2015 15:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Seismic Alarm Capability During Conduct of Functional Test ENS 511842015-06-27T02:49:00027 June 2015 02:49:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Seismic Monitor Declared Non Functional ENS 510292015-05-01T21:00:0001 May 2015 21:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Seismic Monitoring Due to Planned Maintenance ENS 489552013-04-22T21:23:00022 April 2013 21:23:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Operations Facility Not Available ENS 481412012-07-27T02:20:00027 July 2012 02:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Ac Power to the Emergency Operations Facility ENS 453762009-09-22T10:11:00022 September 2009 10:11:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Power to the Emergency Operations Facility ENS 453392009-09-11T15:25:00011 September 2009 15:25:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Spds Removed from Service for Maintenance ENS 452032009-07-14T03:00:00014 July 2009 03:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Ens Phone Circuits and Some Commercial Communication Capability ENS 450382009-05-03T12:45:0003 May 2009 12:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Eof Communication Capability Due to Equipment Failure ENS 440902008-03-25T03:48:00025 March 2008 03:48:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Spds Oos for Planned Maintenance ENS 428982006-10-11T19:39:00011 October 2006 19:39:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Spds Out of Service ENS 417962005-06-24T20:30:00024 June 2005 20:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System Failure in Emergency Operations Facility ENS 415682005-04-06T16:06:0006 April 2005 16:06:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Major Loss of Communications Capability Due to Offsite Fiber Optic Cable Cut ENS 415042005-03-19T07:30:00019 March 2005 07:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Advanced Notification Prior to Taking Spds Out of Service ENS 412172004-11-23T15:45:00023 November 2004 15:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Assessment Capability Due to Failure of Spds ENS 402032003-09-27T20:08:00027 September 2003 20:08:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System (Spds) ENS 401222003-08-29T22:50:00029 August 2003 22:50:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Offsite Emergency Siren Actuation Capability 2019-05-19T23:09:00 | |
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