ENS 43904
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ENS Event | |
|---|---|
22:10 Jan 14, 2008 | |
| Title | Planned Loss of Main Control Room Annunciator System |
| Event Description | At 1610 hours0.0186 days <br />0.447 hours <br />0.00266 weeks <br />6.12605e-4 months <br />, on 1/14/2008, the Main Control Room annunciator system will be removed from service to support activities for a planned maintenance outage at River Bend Station. The duration of the work is expected to be completed in less than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.
During this time, other Control Room indications and alternate methods will be available to implement the Emergency Plan. Since the Main Control Room annunciator System will be unavailable, this is considered a Loss of Emergency Assessment Capability and reportable under 10CFR50.72(b)(3)(xiii). A follow-up notification will be made to the NRC after the Main Control Room annunciator system is returned to service. The licensee notified the NRC Resident Inspector. No major systems in LCOs at this time and the only major ongoing activity is Fuel Handling.
Main control room annunciator system has been restored to service at 1708 CST. The licensee notified the NRC Resident Inspector. Notified R4DO (Spitzberg). |
| Where | |
|---|---|
River Bend  Louisiana (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-5.08 h-0.212 days <br />-0.0302 weeks <br />-0.00696 months <br />) | |
| Opened: | Gary Huston 17:05 Jan 14, 2008 |
| NRC Officer: | Jeff Rotton |
| Last Updated: | Jan 14, 2008 |
| 43904 - NRC Website
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WEEKMONTHYEARENS 491222013-06-16T09:56:00016 June 2013 09:56:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Broken Damper Blade Linkage Found on Technical Support Center Ventilation Line ENS 485552012-12-04T15:42:0004 December 2012 15:42:00 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 Licensee No Longer Has Control of Emergency Sirens ENS 479952012-06-05T10:02:0005 June 2012 10:02:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Filter Train Inoperable ENS 479602012-05-24T18:48:00024 May 2012 18:48:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Manual Reactor Scram Due to a Loss of Feed as Result of a Loss of Switchgear ENS 458362010-04-13T10:01:00013 April 2010 10:01:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation System Out of Service ENS 440132008-02-28T18:38:00028 February 2008 18:38:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness "Planned Maintenance on Safety Parameter Display System (Spds) and Emergency Response Data System (Erds) ENS 439522008-02-01T19:45:0001 February 2008 19:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Scheduled Loss of All Main Control Room Annunciators to Support Plant Maintenance ENS 439112008-01-17T15:17:00017 January 2008 15:17:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Control Room Annunciators Removed from Service for Planned Maintenance ENS 439042008-01-14T22:10:00014 January 2008 22:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Loss of Main Control Room Annunciator System ENS 439012008-01-13T16:36:00013 January 2008 16:36:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Assessment Capabilities Due to Planned Maintenance Activities 2013-06-16T09:56:00 | |
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