ENS 45300
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ENS Event | |
|---|---|
13:00 Aug 26, 2009 | |
| Title | Loss Of Response Capability Due To Maintenance Rendering Tsc Non-Functional |
| Event Description | The TSC Air Handling Unit will be taken OOS to repair one of the two compressors. In order to perform this corrective maintenance, the TSC HVAC will be removed from service for [approximately] 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> to disconnect the compressor to be repaired and in doing so will render the TSC HVAC inoperable which renders the TSC as non-functional. The TSC HVAC will be restarted to return the TSC to an operable and functional status. The work to repair or replace the compressor is planned to be completed within (1-3 days). After the work is completed, the system will be taken out of service again to reconnect the compressor ([approximately] 1 hr) and return the TSC HVAC to service.
The licensee notified the NRC Resident Inspector.
Maintenance was completed and the TSC was restored to operable status. The licensee notified the NRC Resident Inspector. Notified the R2DO(Widmann). |
| Where | |
|---|---|
Vogtle  Georgia (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-3.67 h-0.153 days <br />-0.0218 weeks <br />-0.00503 months <br />) | |
| Opened: | John Covington 09:20 Aug 26, 2009 |
| NRC Officer: | Dong Park |
| Last Updated: | Aug 28, 2009 |
| 45300 - 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 573612024-10-04T02:35:0004 October 2024 02:35:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Seismic Monitoring for Emergency Plan Assessment ENS 550552021-01-03T11:45:0003 January 2021 11:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Nonfunctional Seismic Monitoring System ENS 513432015-08-25T16:52:00025 August 2015 16:52:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unplanned Loss of Primary and Backup Meteorological Instrumentation ENS 512232015-07-13T12:30:00013 July 2015 12:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Primary and Backup Meteorological Towers to Be Removed from Service for Upgrade ENS 503472014-08-06T09:16:0006 August 2014 09:16:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tsc Hvac and Filtration Removed from Service for Planned Maintenance ENS 502192014-06-20T15:00:00020 June 2014 15:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Plant Vent Effluent Monitors ENS 497182014-01-13T09:00:00013 January 2014 09:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Technical Support Center Due to Planned Maintenance ENS 492722013-08-13T06:25:00013 August 2013 06:25:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation Failure ENS 491442013-06-24T08:30:00024 June 2013 08:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on the Technical Support Center Backup Generator ENS 491402013-06-21T14:30:00021 June 2013 14:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Taken Out of Service for Planned Maintenance ENS 489882013-05-01T09:00:0001 May 2013 09:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service for Planned Maintenance ENS 489852013-04-30T13:45:00030 April 2013 13:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on the Technical Support Center Support Systems ENS 484612012-10-31T11:42:00031 October 2012 11:42:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Outage Due to Planned Maintenance ENS 472872011-09-22T09:27:00022 September 2011 09:27:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Non-Functional Due to the Loss of the Tsc Chiller System ENS 472402011-09-04T14:20:0004 September 2011 14:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Lost Due to Failed Backup Diesel Generator Surveillance Test ENS 470322011-07-07T13:00:0007 July 2011 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Siren Outage ENS 465712011-01-26T13:30:00026 January 2011 13:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Unavailable Due to Planned Maintenance ENS 465252011-01-08T19:38:0008 January 2011 19:38:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service Due to Planned Maintenance ENS 464422010-11-29T21:12:00029 November 2010 21:12:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Plant Computer Maintenance Outage ENS 463212010-10-08T15:00:0008 October 2010 15:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Integrated Plant Computer Removed from Service for Upgrade Work ENS 461602010-08-09T09:00:0009 August 2010 09:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Declared Out of Service for Planned Maintenance ENS 460842010-07-12T07:40:00012 July 2010 07:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Technical Support Center Outage ENS 453562009-09-17T17:52:00017 September 2009 17:52:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Functionality Out of Service ENS 453002009-08-26T13:00:00026 August 2009 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Response Capability Due to Maintenance Rendering Tsc Non-Functional ENS 451282009-06-13T13:45:00013 June 2009 13:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation System Out of Service ENS 450752009-05-17T13:21:00017 May 2009 13:21:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service Due Loss of Emergency Diesel Generator ENS 448412009-02-09T09:15:0009 February 2009 09:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tsc Oos Due to Planned Hvac Maintenance ENS 446482008-11-09T20:30:0009 November 2008 20:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Hvac Out of Service ENS 445682008-10-16T05:56:00016 October 2008 05:56:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Non-Functional Technical Support Center ENS 444802008-09-10T21:11:00010 September 2008 21:11:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Hvac Emergency Backup Power Source Out of Service ENS 442262008-05-20T20:00:00020 May 2008 20:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Functionality to Technical Support Center ENS 438792008-01-02T08:31:0002 January 2008 08:31:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Tsc Radio System Due to Battery Backup Depletion During Power Supply Changeout ENS 435772007-08-18T01:58:00018 August 2007 01:58:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Offsite Public Alerting Sirens Inoperable for a Short Time Due to a Lightning Strike ENS 434542007-06-27T19:55:00027 June 2007 19:55:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Habitability Issue ENS 431872007-02-26T09:00:00026 February 2007 09:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Chiller Malfunction ENS 429162006-10-17T19:30:00017 October 2006 19:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Degraded Technical Support Center Ventilation Supply Fan ENS 418132005-06-30T12:00:00030 June 2005 12:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Alert Notification Radio Transmitter Discovered Inoperable 2024-10-04T02:35:00 | |
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