ENS 50730
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ENS Event | |
|---|---|
11:00 Jan 12, 2015 | |
| Title | Planned Maintenance on Radiological Monitor |
| Event Description | At 0500 [CST] today (January 12, 2015), planned maintenance activities commenced on the Reactor Building Separate Particulate Iodine and Noble Gas (SPING) monitor. Work on the SPING affects classification and assessment of the Emergency Plan for a radiological release through the Reactor Building Vents. In the case of a radiological event, the Reactor Building Ventilation will be isolated via Area Radiation Monitors (ARM) in the ducting and the Main Chimney SPING will be used for classification and assessment. This would be the normal response for a radiological event.
This maintenance activity is expected to be longer than 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. The Reactor Building SPING is scheduled to be restored on Friday, January 16. This event is reportable per 10CFR50.72(b)(3)(xiii) since the maintenance activity affects classification and assessment. The NRC Resident Inspector has been notified. |
| Where | |
|---|---|
Quad Cities  Illinois (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-1.95 h-0.0813 days <br />-0.0116 weeks <br />-0.00267 months <br />) | |
| Opened: | Jim Burke 09:03 Jan 12, 2015 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Jan 12, 2015 |
| 50730 - 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 563572023-02-06T11:30:0006 February 2023 11:30:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications and Assessment Capabilities ENS 520992016-07-18T19:50:00018 July 2016 19:50:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Offsite Communications Capability ENS 515022015-10-27T15:30:00027 October 2015 15:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tsc Air Filtration System Degraded ENS 513642015-09-03T02:00:0003 September 2015 02:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Technical Support Center (Tsc) Maintenance ENS 512722015-07-27T22:30:00027 July 2015 22:30:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Control Room Emergency Ventilation System Inoperable ENS 510932015-05-27T14:52:00027 May 2015 14:52:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Control Room Emergency Ventilation System Inoperable ENS 509282015-03-26T18:30:00026 March 2015 18:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Seismograph Not Available for Emergency Plan Assessment ENS 507302015-01-12T11:00:00012 January 2015 11:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on Radiological Monitor ENS 507082014-12-30T14:16:00030 December 2014 14:16:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Technical Support Center Maintenance Affecting the Air Handling System ENS 506782014-12-15T13:30:00015 December 2014 13:30:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Control Room Emergency Ventilation System Inoperable ENS 491352013-06-19T15:15:00019 June 2013 15:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Planned Maintenance ENS 484062012-10-15T13:00:00015 October 2012 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Technical Support Center (Tsc) Maintenance ENS 471052011-07-28T06:15:00028 July 2011 06:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Control Room Temperature Recorder Inoperable ENS 468232011-05-05T15:35:0005 May 2011 15:35:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center (Tsc) Ventilation System Degraded ENS 462022010-08-24T14:22:00024 August 2010 14:22:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Offsite Communications ENS 457712010-03-17T16:30:00017 March 2010 16:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Erds and Spds Out of Service Due to Process Computer Upgrade ENS 455872009-12-23T12:56:00023 December 2009 12:56:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Winter Storm Power Outages Cause Alert Siren Inoperability ENS 455552009-12-09T17:17:0009 December 2009 17:17:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Winter Storm Power Outages Cause Alert Siren Inoperability ENS 454882009-11-11T18:38:00011 November 2009 18:38:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Degraded Tsc Emergency Ventilation ENS 452852009-08-24T07:40:00024 August 2009 07:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tsc Air Filtration System Inoperable Due to Planned Maintenance ENS 451462009-06-21T08:08:00021 June 2009 08:08:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Unit 2 Emergency Response Data System (Erds) Due to a Plant Process Computer Issue ENS 450802009-05-19T14:00:00019 May 2009 14:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Response Data System (Erds) Due to Network Service Not Functioning ENS 450282009-04-28T23:34:00028 April 2009 23:34:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Process Computer Replacement Impacting Erds and Spds ENS 431842007-02-25T01:20:00025 February 2007 01:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Reduction in Emergency Preparedness Capability ENS 412252004-11-25T21:45:00025 November 2004 21:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Safety Parameter Display System 2023-02-06T11:30:00 | |
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