ENS 41295
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ENS Event | |
|---|---|
14:04 Dec 26, 2004 | |
| Title | Loss Of Communications/Response Capability |
| Event Description | At 0804 hours0.00931 days <br />0.223 hours <br />0.00133 weeks <br />3.05922e-4 months <br /> EST, on December 26, 2004, at the H. B. Robinson Steam Electric Plant (HBRSEP), Unit No. 2, a partial loss of non-vital offsite power occurred causing the inoperability of the Emergency Response Facility Information (ERFIS) computer system for greater than one hour. The ERFIS computer system provides monitoring and communications capability for plant data systems including the Emergency Response Data System (ERDS), among others. At 0852, the remaining non-vital offsite power was lost resulting in the disabling of the primary Emergency Operating Facility (EOF). The off-site alternate EOF remained operational. Power to the primary EOF was restored at 0913 and the ERFIS computer system was restored to operable status at 1010 hours0.0117 days <br />0.281 hours <br />0.00167 weeks <br />3.84305e-4 months <br /> on December 26, 2004.
As required by plant procedures, appropriate assessment of plant conditions, notifications, and communications could still have been made through alternate methods during the time that the ERFIS computer system was inoperable. This report is being made in accordance with 10 CFR 50.72(b)(3)(xiii), which is any event that results in a major loss of emergency assessment capability, offsite response capability, or offsite communications capability. As previously stated, alternate means remained available to assess plant conditions, make notifications, and accomplish required communications, as necessary. The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Robinson  South Carolina (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-1.27 h-0.0529 days <br />-0.00756 weeks <br />-0.00174 months <br />) | |
| Opened: | Henry Curry 12:48 Dec 26, 2004 |
| NRC Officer: | Janelle Battiste |
| Last Updated: | Dec 26, 2004 |
| 41295 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 547682020-07-10T13:00:00010 July 2020 13:00:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Common Emergency Operations Facility Maintenance ENS 523322016-10-29T14:32:00029 October 2016 14:32:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center (Tsc) and Emergency Operations Facility (Eof) Ventilation System Out of Service ENS 485662012-12-07T14:20:0007 December 2012 14:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Emergency Offsite Facility/Technical Support Center Ventilation Maintenance ENS 485582012-12-05T05:31:0005 December 2012 05:31:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Radiation Monitor Out of Service for Planned Maintenance ENS 485082012-11-14T14:27:00014 November 2012 14:27:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Radiation Monitor Out of Service ENS 483542012-09-28T12:30:00028 September 2012 12:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Emergency Offsite Facility/Technical Support Center Ventilation Maintenance ENS 482882012-09-08T12:00:0008 September 2012 12:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Offsite Facility/Technical Support Center Ventilation Maintenance ENS 481802012-08-11T11:30:00011 August 2012 11:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation Out of Service for Scheduled Maintenance ENS 478282012-04-12T13:30:00012 April 2012 13:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tsc and Eof Out of Service Due to Maintenance ENS 476632012-02-14T17:40:00014 February 2012 17:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Response Facility Information System Due to Planned Modification ENS 475012011-12-06T14:00:0006 December 2011 14:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Assessment Capability ENS 468282011-05-07T12:27:0007 May 2011 12:27:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Data Systems Out of Service Due to Planned Modification ENS 462042010-08-25T12:45:00025 August 2010 12:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Several Display Systems Due to Planned Computer Modifications ENS 431342007-01-30T10:43:00030 January 2007 10:43:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Response Facility Information System ENS 431272007-01-27T14:05:00027 January 2007 14:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Erfis Removed from Service for Planned Modification ENS 430812007-01-06T15:00:0006 January 2007 15:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Spds Parameter Display Due to Planned Modification ENS 412952004-12-26T14:04:00026 December 2004 14:04:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications/Response Capability ENS 405342004-02-21T04:20:00021 February 2004 04:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Response Facility Information System Inoperable ENS 404772004-01-26T03:36:00026 January 2004 03:36:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Response Communications Due to Failed Uninterruptible Power Supply 2020-07-10T13:00:00 | |
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