ENS Event | |
|---|---|
21:05 Jun 30, 2014 | |
| Title | Discovery of an After-The-Fact Unusual Event |
| Event Description | This is a one hour report for the discovery of a condition that briefly met the emergency action level (EAL) for an Unusual Event but did not warrant declaration of an emergency classification. A detailed review of the conditions that existed during a thunderstorm that took place today revealed that the backup 50 meter wind speed briefly indicated 95.5 mph, which exceeds the HU 1.3 criteria of 95 mph. The primary 50 meter wind speed indicator did not exceed 89 mph. Operators in the control room did not observe wind speed exceed 80 mph on SPDS. This event is a one hour report based on the guidance in NUREG-1022 for a condition that met an emergency plan EAL and the basis for the emergency classification no longer existed at the time of discovery."
The NRC Resident Inspector has been informed. |
| Where | |
|---|---|
Duane Arnold  Iowa (NRC Region 3) | |
| Reporting | |
| Other Unspec Reqmnt | |
| Time - Person (Reporting Time:+-3.17 h-0.132 days <br />-0.0189 weeks <br />-0.00434 months <br />) | |
| Opened: | Stephen Speirs 17:55 Jun 30, 2014 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Jun 30, 2014 |
| 50243 - 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 50243\u003C/a\u003E - \u003Ca href=\"/Duane_Arnold\" title=\"Duane Arnold\"\u003EDuane Arnold\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EDiscovery of an After-The-Fact Unusual Event\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 50243 - Duane Arnold\n","link":"","lat":42.10089166666667,"lon":-91.77759444444445,"icon":"/w/images/9/9b/NextEra_Energy_icon.png"}],"imageoverlays":null} | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 502432014-06-30T21:05:00030 June 2014 21:05:00
[Table view]Other Unspec Reqmnt Discovery of an After-The-Fact Unusual Event 2014-06-30T21:05:00 | |