ENS 50263
ENS Event | |
|---|---|
13:25 Jul 8, 2014 | |
| Title | Unusual Event Due to Smoke Alarm Inside Containment |
| Event Description | Unusual Event declared at 0935 EDT on July 8, 2014 due to a single fire alarm in containment. ELA HU4. No abnormal condition or plant impact at this time. The plant remains stable at 100% power.
A single smoke detector inside containment alarmed at 0925 EDT. There are no other indications of smoke or fire at this time. Adjacent smoke detectors are not in alarm. A containment entry team is being assembled to verify that there is no fire inside containment. The smoke detector alarm cleared at 1006 EDT. The licensee notified the NRC Resident Inspector. The licensee will make appropriate notifications to state and local government agencies. Notified DHS, FEMA, and NICC via email and phone. Notified FEMA NWC and Nuclear SSA via email.
The Unusual Event was terminated at 1328 EDT on 7/8/14. A containment entry was performed and no indications of a fire existed. The fire alarm was spurious and the detector has been disabled. There was no notification of other government agencies and there is no media /press release planned. The plant maintained stable operations at 100% power. The licensee notified the NRC Resident Inspector, the state of Ohio and local officials. Notified R3DO (Hills) NRR EO (McGinty), IRC MOC (Grant). Notified DHS, FEMA, and NICC via email and phone. Notified FEMA NWC and Nuclear SSA via email. |
| Where | |
|---|---|
Davis Besse  Ohio (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-3.32 h-0.138 days <br />-0.0198 weeks <br />-0.00455 months <br />) | |
| Opened: | Charlie Steenbergen 10:06 Jul 8, 2014 |
| NRC Officer: | Donald Norwood |
| Last Updated: | Jul 8, 2014 |
| 50263 - 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 50263\u003C/a\u003E - \u003Ca href=\"/Davis_Besse\" title=\"Davis Besse\"\u003EDavis Besse\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EUnusual Event Due to Smoke Alarm Inside Containment\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 50263 - Davis Besse\n","link":"","lat":41.59545,"lon":-83.08950833333333,"icon":"/w/images/7/78/Cleveland_Electric_icon.png"}],"imageoverlays":null} | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 514832015-10-21T00:24:00021 October 2015 00:24:00
[Table view]10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Due to Suspicious Vehicle in Owner Controlled Area ENS 510612015-05-09T22:55:0009 May 2015 22:55:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Unusual Event Declared Due to Steam Leak in the Turbine Building ENS 502632014-07-08T13:25:0008 July 2014 13:25:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Due to Smoke Alarm Inside Containment ENS 474432011-11-16T07:22:00016 November 2011 07:22:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Due to Fire in Electrical Bus Affecting Safety Related Equipment ENS 465512011-01-19T07:32:00019 January 2011 07:32:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of Unusual Event Due to a Fire and Explosions in the Protected Area ENS 451622009-06-25T04:49:00025 June 2009 04:49:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Discovery of an After-The-Fact Alert Due to Catastrophic Failure of Ccpd ENS 400702003-08-14T20:10:00014 August 2003 20:10:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to a Loss of Offsite Power. 2015-05-09T22:55:00 | |