ENS 57278
From kanterella
Jump to navigation
Jump to search
ENS Event | |
|---|---|
00:01 Aug 21, 2024 | |
| Title | Control Room Ventilation Inoperable |
| Event Description | The following information was provided by the licensee via email and phone:
At 2001 EDT on 8/20/2024, it was discovered that both trains of the control room ventilation system were simultaneously inoperable. Due to this inoperability, the system was in a condition that could have prevented the fulfillment of a safety function; therefore, this condition is being reported as an eight-hour notification per 10 CFR 50.72(b)(3)(v). There is no impact on the health and safety of the public or plant personnel. The NRC resident inspector has been notified. One train of control room ventilation was restored to operable status at 2107 EDT on 8/20/2024. The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: While performing canister maintenance on train B, it was discovered that the dampener for train A failed to close. Train B was restored at the conclusion of maintenance.
The following information was provided by the licensee via email and phone: This event is also reportable per 10 CFR 50.72(b)(3)(xiii), loss of emergency assessment capability, as the technical support center facility is located inside the control room envelope. Notified R2DO (Masters) |
| Where | |
|---|---|
Summer  South Carolina (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-0.48 h-0.02 days <br />-0.00286 weeks <br />-6.57504e-4 months <br />) | |
| Opened: | Jason Pawlak 23:32 Aug 20, 2024 |
| NRC Officer: | Jordan Wingate |
| Last Updated: | Aug 21, 2024 |
| 57278 - NRC Website
Loading map... {"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"350px","height":"250px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":6,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003EENS 57278\u003C/a\u003E - \u003Ca href=\"/Summer\" title=\"Summer\"\u003ESummer\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EControl Room Ventilation Inoperable\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 57278 - Summer\n","link":"","lat":34.29653611111111,"lon":-81.31628333333333,"icon":"/w/images/6/6b/South_Carolina_Electric_%26_Gas_Company_icon.png"}],"imageoverlays":null} | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Summer with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
WEEKMONTHYEARENS 573282024-09-18T00:05:00018 September 2024 00:05:00
[Table view]10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Steam Propagation Door Inoperable ENS 572782024-08-21T00:01:00021 August 2024 00:01:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Control Room Ventilation Inoperable ENS 527052017-04-25T13:00:00025 April 2017 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Fuel Handling Bridge Radiation Monitor Out of Service ENS 522402016-09-14T00:30:00014 September 2016 00:30:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Steam Propagation Barrier Door Found Open ENS 485182012-11-18T16:30:00018 November 2012 16:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Assessment Capability Due to Integrated Plant Computer Planned Maintenance ENS 429912006-11-14T21:42:00014 November 2006 21:42:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Siren Activation Capability Inoperable for Approximately 15 Minutes ENS 425602006-05-08T16:30:0008 May 2006 16:30:00 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 Early Warning Siren System (Ewss) Declared Inoperable ENS 417552005-06-08T00:20:0008 June 2005 00:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Twenty-Eight Early Warning Sirens Temporarily Inoperable ENS 413632005-01-30T09:10:00030 January 2005 09:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Siren Capability Due to Adverse Weather ENS 412422004-12-04T03:30:0004 December 2004 03:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Early Warning Siren System Failure ENS 411142004-10-11T14:57:00011 October 2004 14:57:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Siren Capability Following Planned Siren Maintenance ENS 404832004-01-27T17:00:00027 January 2004 17:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Ens Telephone and Siren System ENS 401422003-09-09T13:15:0009 September 2003 13:15:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Accident Mitigation - Control Room Ventilation System 2024-09-18T00:05:00 | |
Retrieved from "https://kanterella.com/w/index.php?title=ENS_57278&oldid=3651749"