ENS 46481
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ENS Event | |
|---|---|
23:40 Dec 14, 2010 | |
| Title | Ens Phone Lines Out of Service Due to a Failed Rectifier |
| Event Description | At 1740 CST the control room was notified by a commercial phone provider that they had received alarms indicating the ENS communications lines were out of service. Attempts to use the ENS lines confirmed that the ENS system is not functioning at the site. Commercial lines with an 899 prefix are also not functioning. Alternate commercial lines are available and have been verified functional. The vendor has determined that the loss of the ENS lines are the result of a failed rectifier. It is currently not known when the ENS lines will be returned to service. Farley Nuclear Plant may be contacted via commercial line.
The licensee will notify the NRC Resident Inspector.
ENS line at Farley was repaired and successfully tested. The licensee will notify the NRC Resident Inspector. Notified R2DO (Henson) |
| Where | |
|---|---|
Farley  Alabama (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-1.08 h-0.045 days <br />-0.00643 weeks <br />-0.00148 months <br />) | |
| Opened: | William Arens 22:35 Dec 14, 2010 |
| NRC Officer: | Vince Klco |
| Last Updated: | Dec 14, 2010 |
| 46481 - 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 521572016-08-05T17:09:0005 August 2016 17:09:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Fire Detection Panel Failure and Loss of Assessment Capability ENS 506772014-12-13T07:52:00013 December 2014 07:52:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Malfunction of Smoke Detection System in Containment Due to High Humidity ENS 506042014-11-12T08:02:00012 November 2014 08:02:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness No Functional Smoke Detection Capability in Containment ENS 500342014-04-14T11:00:00014 April 2014 11:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Post-Accident Hydrogen Sample Analyzers Out-Of-Service ENS 499012014-03-12T13:41:00012 March 2014 13:41:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Pyro Panel Maintenance Results in Loss of Emergency Assessment Capability ENS 498622014-02-28T14:42:00028 February 2014 14:42:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Pyro Panel Removed from Service for Maintenance ENS 497892014-02-03T18:00:0003 February 2014 18:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service Due to a Refrigerant Leak in the Hvac System ENS 497442014-01-18T16:20:00018 January 2014 16:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unit 2 Pyro Panel Non-Functional Due to Unknown Equipment Problems ENS 497352014-01-17T15:25:00017 January 2014 15:25:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Pyro Panel Taken Out of Service for Planned Maintenance ENS 496372013-12-16T20:54:00016 December 2013 20:54:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Containment Smoke Detection Capability ENS 496192013-12-09T15:06:0009 December 2013 15:06:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Smoke Detection Panel Removed from Service for Planned Maintenance ENS 494172013-10-07T23:04:0007 October 2013 23:04:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Vent Stack and Area Radiation Monitors Taken Out of Service for Maintenance ENS 490912013-06-05T15:39:0005 June 2013 15:39:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications with the Integrated Plant Computer ENS 489682013-04-25T22:59:00025 April 2013 22:59:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Vent Stack Radiation Monitors De-Energized for Short Duration During Pre-Planned Maintenance ENS 489262013-04-16T05:37:00016 April 2013 05:37:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Main Control Board Annunciation During Loss-Of-Offsite-Power Test ENS 487182013-02-05T16:05:0005 February 2013 16:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Non-Functional Due to Hvac System Malfunction ENS 486722013-01-14T18:55:00014 January 2013 18:55:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out-Of-Service Due to Failed Air Conditioning Belt ENS 480262012-06-14T18:53:00014 June 2012 18:53:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Control Room Annunciator Outage ENS 479242012-05-15T12:20:00015 May 2012 12:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Planned Maintenance ENS 479202012-05-13T01:15:00013 May 2012 01:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Hvac for Technical Support Center Out of Service ENS 469072011-06-01T13:18:0001 June 2011 13:18:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service Due to Ventilation Condenser Unit Failure ENS 468292011-05-08T13:25:0008 May 2011 13:25:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Malfunctioning Technical Support Center Ventilation ENS 467652011-04-18T13:00:00018 April 2011 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation Out of Service for Planned Maintenance ENS 465392011-01-14T17:25:00014 January 2011 17:25:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service Due to Planned Maintenance ENS 464812010-12-14T23:40:00014 December 2010 23:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Ens Phone Lines Out of Service Due to a Failed Rectifier ENS 462662010-09-22T13:26:00022 September 2010 13:26:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Hvac Unit Out of Service for Maintenance ENS 461232010-07-23T13:52:00023 July 2010 13:52:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Temporary Outage of Public Prompt Notification System Due to a Bomb Threat Offsite ENS 459162010-05-11T14:30:00011 May 2010 14:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Technical Support Center ENS 459062010-05-06T19:40:0006 May 2010 19:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Nonfunctional ENS 431332007-01-30T14:35:00030 January 2007 14:35:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Spds Due to Planned Maintenance ENS 429712006-11-08T14:05:0008 November 2006 14:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Plant Computer Down for Upgrade ENS 422802006-01-20T16:17:00020 January 2006 16:17:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Public Prompt Notification Systems Sirens Discovered Inoperable ENS 422672006-01-18T17:34:00018 January 2006 17:34:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Offsite Public Prompt Notification for Greater than One Hour ENS 404432004-01-13T19:55:00013 January 2004 19:55:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communication and Emergency Notification System 2016-08-05T17:09:00 | |
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