ENS 41533
ENS Event | |
|---|---|
19:21 Mar 28, 2005 | |
| Title | Planned Outage of Spds Due to System Upgrade |
| Event Description | The licensee faxed the following information:
On Tuesday, March 29, 2005, Surry Power Station will remove a portion of the Emergency Response Facilities Computer System (ERFCS) in the Main Control Room (MCR) for planned upgrades to a new system for increased reliability and improved human interface design. For approximately 1 week, there will not be a qualified Safety Parameter Display System (SPDS) available in the MCR. During the time period that SPDS is unavailable in the MCR while the upgrade is occurring, the replacement SPDS system is available in the MCR on the Plant Computer System (PCS), but final testing will not qualify the software until completion of this work. There will also remain one ERFCS terminal operable in both the Technical Support Center (TSC) and Local Emergency Operations Facility (LEOF) with operable SPDS throughout the duration of this work. The Emergency Response Data System (ERDS) will remain available from those terminals for the duration of this planned work and normal data transmission capability will remain in the event of an emergency. Since SPDS will be out of service for greater than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, this report is being submitted in accordance with the guidance in 10CFR50.72(b)(3)(xiii) and NUREG-1022. The licensee has notified the NRC Resident Inspector.
The following information was provided by the licensee via facsimile: This report is an update to previous report EN #41533, dated 03/28/05, regarding the availability of the Emergency Response Facilities Computer System (ERFCS) and Safety Parameter Display System (SPDS) in the main control room for Surry Power Station. The ERFCS and SPDS modifications and testing were completed at 1630 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20215e-4 months <br /> on 04/07/05. These functions have been transferred to the Surry Plant Computer System. Senior NRC resident, Norm Garrett was notified via alphanumeric page. Notification was made to NRC duty officer Bill Huffman. R2DO (Rogers) notified. |
| Where | |
|---|---|
Surry  Virginia (NRC Region 2) | |
| 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: | James Shell 14:21 Mar 28, 2005 |
| NRC Officer: | John Knoke |
| Last Updated: | Apr 7, 2005 |
| 41533 - 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 496732013-12-23T13:28:00023 December 2013 13:28:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications with Virginia State Eoc Due to Power Outage ENS 459862010-06-08T13:48:0008 June 2010 13:48:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge Automatic Reactor Trip with Safety Injection Due to Loss of Vital Ac Bus ENS 440542008-03-12T09:00:00012 March 2008 09:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Interruption to Ens Telephone Service ENS 428852006-10-07T17:40:0007 October 2006 17:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Site Access Road Flooded ENS 428712006-10-02T04:00:0002 October 2006 04:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Offsite Sirens Inoperable for Planned Maintenance ENS 415332005-03-28T19:21:00028 March 2005 19:21:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Outage of Spds Due to System Upgrade ENS 406982004-04-22T14:45:00022 April 2004 14:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System (Spds) Declared Inoperable ENS 401812003-09-19T15:30:00019 September 2003 15:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Sirens 2013-12-23T13:28:00 | |