ENS 47632
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ENS Event | |
|---|---|
13:22 Feb 3, 2012 | |
| Title | |
| Event Description | LOSS OF PLANT COMMUNICATIONS DUE TO SCHEDULED MAINTENANCE
The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Calvert Cliffs  Maryland (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-5 h-0.208 days <br />-0.0298 weeks <br />-0.00685 months <br />) | |
| Opened: | Charles Morgan 08:22 Feb 3, 2012 |
| NRC Officer: | Vince Klco |
| Last Updated: | Feb 3, 2012 |
| 47632 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (93 %) |
| After | Power Operation (93 %) |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 563552023-02-06T11:30:0006 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 515102015-11-02T14:20:0002 November 2015 14:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Radiation Monitoring Equipment Due to Planned Maintenance ENS 506872014-12-17T09:17:00017 December 2014 09:17:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Main Plant Vent Radiation Monitoring Unavailable ENS 505022014-10-01T05:24:0001 October 2014 05:24:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Partial Loss of Communications in Emergency Operations Facility and Joint Information Center ENS 487902013-02-27T20:38:00027 February 2013 20:38:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on Unit 2 Plant Process Computer ENS 487202013-02-06T14:00:0006 February 2013 14:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on Plant Process Computer ENS 486032012-12-18T19:36:00018 December 2012 19:36:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Partial Loss of Emergency Assessment During Planned Modifications ENS 483682012-10-03T12:00:0003 October 2012 12:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Outage Due to Planned Maintenance ENS 482522012-08-29T23:30:00029 August 2012 23:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Primary Plant Computer Out of Service ENS 480872012-07-11T02:25:00011 July 2012 02:25:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Erds Due to Communications Network Module Failure ENS 480732012-07-06T06:32:0006 July 2012 06:32:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Response Data System Out of Service ENS 476992012-02-26T20:46:00026 February 2012 20:46:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Plant Assessment Capabilities Due to an Out of Service Plant Process Computer ENS 476842012-02-22T18:45:00022 February 2012 18:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Electrical Distribution System Maintenance to Impact Emergency Response Facilities ENS 476322012-02-03T13:22:0003 February 2012 13:22:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness ENS 472922011-09-26T18:00:00026 September 2011 18:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness 800 Mhz Radio System Temporarily Removed from Service Due to Degraded Antenna ENS 472072011-08-27T23:15:00027 August 2011 23:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Sirens Out-Of-Service ENS 465162010-12-29T13:15:00029 December 2010 13:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Scheduled Microwave Radio Maintenance Impact to the Ccnpp Control Room and Emergency Operations Facility ENS 464852010-12-16T13:00:00016 December 2010 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance to Microwave Radio System Affecting Eof, State and County Facilities ENS 461082010-07-19T14:30:00019 July 2010 14:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Response Data System Discovered to Be Out of Service ENS 460682010-07-04T15:30:0004 July 2010 15:30:00 Other Unspec Reqmnt, 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 Telephone Communications Outage ENS 457052010-02-16T05:00:00016 February 2010 05:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Scheduled Microwave Radio Upgrades Impact to the Control Room and Emergency Operations Facility ENS 453662009-09-20T05:30:00020 September 2009 05:30:00 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 Emergency Sirens Inoperable ENS 450812009-05-19T19:00:00019 May 2009 19:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Response Data System (Erds) Computer Harddrive Out of Service ENS 448862009-03-02T16:35:0002 March 2009 16:35:00 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 Weather Related Loss of Automatic Notification System Sirens ENS 448562009-02-17T15:00:00017 February 2009 15:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Safety Parameter Display System Due to Planned Maintenance ENS 433842007-05-24T15:00:00024 May 2007 15:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Operations Facility Out of Service for Planned Maintenance ENS 429532006-11-01T14:08:0001 November 2006 14:08:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Potential Degradation in the Offsite Emergency Siren Notification System ENS 413502005-01-23T17:00:00023 January 2005 17:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Notification Siren Capability Due to Loss of Power ENS 406622004-04-09T20:30:0009 April 2004 20:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Power to Eof ENS 401752003-09-19T01:05:00019 September 2003 01:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Siren Capability Due to Adverse Weather Conditions 2023-02-06T11:30:00 | |
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