ENS 49091
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ENS Event | |
|---|---|
15:39 Jun 5, 2013 | |
| Title | Loss of Communications with the Integrated Plant Computer |
| Event Description | This is a report of a loss of emergency assessment capability as required by 10CFR50.72(b)(3)(xiii).
At 1039 CDT on June 5, 2013, Farley Unit 2 experienced a communication failure of the Integrated Plant Computer (IPC). This represents a loss of Unit 2 automated SPDS and ERDS capability. This also rendered the Technical Support Center (TSC) non-functional for Unit 2 since the TSC relies on IPC data displays for event assessment. The Unit 2 IPC was returned to service at 1115 CDT, restoring all affected emergency response capability. Investigation to determine the cause of the failure is ongoing. With the exception of the Unit 2 IPC all systems functioned as required. The NRC Resident Inspector has been informed. |
| Where | |
|---|---|
Farley  Alabama (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+1.5 h0.0625 days <br />0.00893 weeks <br />0.00205 months <br />) | |
| Opened: | Darrin Gard 17:09 Jun 5, 2013 |
| NRC Officer: | Daniel Mills |
| Last Updated: | Jun 5, 2013 |
| 49091 - NRC Website | |
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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