ENS 52775
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ENS Event | |
|---|---|
14:29 May 30, 2017 | |
| Title | Loss of Emergency Operations Facility Integrated Computer System Data for Planned Maintenance |
| Event Description | On May 30, 2017 at 0929 (CDT), South Texas Project (STP) removed from service Integrated Computer System (ICS) connections to the Emergency Operations Facility (EOF) for planned maintenance. The ICS computers are used in the EOF to directly monitor selected plant parameters and to provide Emergency Response assessment capabilities. This planned maintenance implements a software modification and is expected to last for four days.
This is reportable under 10 CFR 50.72(b)(3)(xiii) because the EOF assessment capabilities would not be able to be restored within the facility activation time and assessment capabilities cannot be performed at a backup facility (i.e., there is no backup EOF). While ICS connections in the EOF are out of service, if the Emergency Plan is entered and the Technical Support Center (TSC) and EOF are staffed, the EOF will not activate and Emergency Director authority will remain in the TSC. The Emergency Response Organization team members that report to the EOF and TSC have been notified regarding the status of the ICS computers in the EOF. The planned modification that impacts the ICS computers in the EOF does not affect the health and safety of the public or station employees. The NRC Resident Inspector has been notified. The licensee notified the Matagorda County Sheriff, and the State of Texas Department of Public Safety and the Department of State Health Services. |
| Where | |
|---|---|
South Texas  Texas (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-0.32 h-0.0133 days <br />-0.0019 weeks <br />-4.38336e-4 months <br />) | |
| Opened: | William Herzog 14:10 May 30, 2017 |
| NRC Officer: | Jeff Rotton |
| Last Updated: | May 30, 2017 |
| 52775 - NRC Website | |
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 542842019-09-18T12:50:00018 September 2019 12:50:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communication with Emergency Operations Facility ENS 541452019-07-03T15:26:0003 July 2019 15:26:00 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 Offsite Notification Due to Radio Transmitter Out of Service ENS 536562018-10-09T05:00:0009 October 2018 05:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unplanned Loss of Emergency Response Equipment ENS 531182017-12-12T23:57:00012 December 2017 23:57:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unplanned Loss of Emergency Response Equipment ENS 527752017-05-30T14:29:00030 May 2017 14:29:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Operations Facility Integrated Computer System Data for Planned Maintenance ENS 511152015-06-01T15:26:0001 June 2015 15:26:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Unit 2 Ventilation Radiation Monitor Operability ENS 484482012-10-27T19:15:00027 October 2012 19:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Offsite Communications ENS 465882011-02-02T14:30:0002 February 2011 14:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Partial Loss of Prompt Notification System (Pns) Emergency Sirens Due to a Loss of Power ENS 435952007-08-25T12:30:00025 August 2007 12:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Erds System and Portions of Plant Computer Out of Service for Planned Maintenance Outage ENS 430862007-01-10T18:35:00010 January 2007 18:35:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Offsite Landline Communications Capability Due to Cut Fiber Optic Cable ENS 425792006-05-16T14:45:00016 May 2006 14:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Disruption of Incoming and Outgoing Telephone Communciation Capability 2019-09-18T12:50:00 | |
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