ENS 48230
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ENS Event | |
|---|---|
18:32 Aug 24, 2012 | |
| Title | Partial Loss of Reactor Building Emergency Assessment Capability |
| Event Description | At 1332 CDT on 8/24/12 a failure of power supply RMA-ES-53A was indicated in the Control Room. The power supply was declared Non-Functional. This failure results in the loss of ability to remotely measure and quantify radiological conditions (radiation levels) for multiple areas in the Reactor Building. The power supply provides power to RMA-RA-1 through RMA-RA-10. RMA-RA-11 through RMA-RA-30 remain fully functional and indicating normally.
The loss of ability to monitor and quantify radiological conditions in multiple areas of the Reactor Building represents a major loss of emergency assessment capability per 10 CFR 50.72(b)(3)(xiii). As specified by station procedures, compensatory measures have been implemented to survey affected areas by installation of portable monitoring devices and trending radiological conditions. RMA-RA-1 through RMA-RA-10 are used for EAL determinations. The Work Week Director has been notified to initiate repairs. The licensee has notified the NRC Resident Inspector. |
| Where | |
|---|---|
Cooper  Nebraska (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-0.98 h-0.0408 days <br />-0.00583 weeks <br />-0.00134 months <br />) | |
| Opened: | Curtis Martin 17:33 Aug 24, 2012 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Aug 24, 2012 |
| 48230 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 572202024-07-09T09:55:0009 July 2024 09:55:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications Capabilities ENS 559812022-07-07T21:01:0007 July 2022 21:01:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of National Warning System Tower ENS 557152022-01-27T16:38:00027 January 2022 16:38:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Meteorlogical Data Acquisition System ENS 542322019-08-19T14:39:00019 August 2019 14:39:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Public Prompt Notification System ENS 539412019-03-16T16:00:00016 March 2019 16:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Tone Alert Radio Transmission Tower ENS 532612018-03-14T22:11:00014 March 2018 22:11:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Notification Tone Alert Radio System ENS 531332017-12-20T21:59:00020 December 2017 21:59:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Alert System Out of Service ENS 530742017-11-16T02:07:00016 November 2017 02:07:00 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 Public Prompt Notification System Capability ENS 527682017-05-23T13:30:00023 May 2017 13:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Meteorological Tower Primary and Backup Communication Equipment ENS 527652017-05-19T13:05:00019 May 2017 13:05:00 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 Nonfunctional Radio Transmission Tower Affects Tone Alert Radios ENS 522792016-10-04T20:30:0004 October 2016 20:30:00 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 Cooper Nuclear Station Loss of Tone Alert Radios ENS 522622016-09-25T14:15:00025 September 2016 14:15:00 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 Cooper Nuclear Station Loss of Tone Alert Radios ENS 520702016-07-07T11:10:0007 July 2016 11:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Tone Alert Radio System Tower ENS 518872016-04-27T13:23:00027 April 2016 13:23:00 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 Tone Alert Radio System Tower ENS 516172015-12-22T01:55:00022 December 2015 01:55:00 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 Tone Alert Radio System Tower ENS 515582015-11-21T00:08:00021 November 2015 00:08:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Meteorological Tower Out of Service ENS 512362015-07-16T04:32:00016 July 2015 04:32:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Assessment Capability Due to Meteorological Tower Software Failure ENS 509472015-04-02T06:49:0002 April 2015 06:49:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Meteorological System Due to Lightning Strike ENS 503922014-08-22T11:45:00022 August 2014 11:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Assessment Capability Because the Meteorological Tower Computer Failed ENS 501612014-05-31T16:36:00031 May 2014 16:36:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Tone Alert Radio Transmitter Not Functional ENS 501052014-05-11T13:02:00011 May 2014 13:02:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of the Meteorological Tower Computer System ENS 495002013-11-05T07:00:0005 November 2013 07:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service for Planned Maintenance ENS 493082013-08-27T04:05:00027 August 2013 04:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Post Accident Monitoring Instrumentation Power Supplies Potentially Degraded ENS 490622013-05-23T15:19:00023 May 2013 15:19:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Temporary Loss of Meteorological Monitoring System During Planned Maintenance ENS 484302012-10-22T11:42:00022 October 2012 11:42:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Partial Loss of Emergency Assessment Capability ENS 484052012-10-13T08:20:00013 October 2012 08:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Portions of Onsite Telephone Systems Not Responding Normally ENS 483012012-09-12T13:06:00012 September 2012 13:06:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service for Planned Maintenance ENS 482302012-08-24T18:32:00024 August 2012 18:32:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Partial Loss of Reactor Building Emergency Assessment Capability ENS 479032012-05-07T17:39:0007 May 2012 17:39:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tone Alert Radio System Outage ENS 477782012-03-28T16:30:00028 March 2012 16:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tone Alert Radios Out of Service for Planned Maintenance ENS 477532012-03-19T06:19:00019 March 2012 06:19:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss Public Prompt Notification Capability ENS 458562010-04-19T06:58:00019 April 2010 06:58:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tsc Emergency Ventilation System Discovered Non-Functional While Placing a Clearance ENS 449372009-03-27T05:00:00027 March 2009 05:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Troubleshooting Emergency Offsite Facility Communications ENS 438702007-12-28T02:04:00028 December 2007 02:04:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Spds Capability for Greater than One Hour ENS 438562007-12-20T13:00:00020 December 2007 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Various Systems at Eof Due to Local Telephone System Partial T1 Failure ENS 438352007-12-11T16:19:00011 December 2007 16:19:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of 11 Alert and Notification Sirens Due to Severe Ice Storm ENS 430762007-01-04T23:43:0004 January 2007 23:43:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness High Range Effluent Radiation Monitors Declared Inoperable Due to Common Cause Failure ENS 429942006-11-16T06:09:00016 November 2006 06:09:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Spds Unavailible Due to Planned Maintenance ENS 415882005-04-11T22:04:00011 April 2005 22:04:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Public Prompt Notification Capability ENS 408782004-07-16T18:45:00016 July 2004 18:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness the Plant Lost Public Prompt Notification Capability ENS 407412004-05-11T15:55:00011 May 2004 15:55:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Assessment Capability Due to Loss of Normal Power to Tsc 2024-07-09T09:55:00 | |
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