ENS 40254
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ENS Event | |
|---|---|
17:30 Oct 16, 2003 | |
| Title | Unusual Event at Cooper Due to Small Fire at a Turbine Bearing |
| Event Description | The licensee declared an Unusual Event at 12:30 CDT pertaining to a small fire, located at the high pressure turbine number 1 bearing, which was burning greater than 10 minutes. There were no injuries and the turbine continues to operate at full power while the fire brigade attempts to extinguish the fire. Subsequently, the licensee extinguished the fire; however, several minutes later, the fire restarted. The licensee decided to lower power to approximately 65% power to lower general area radiation levels for the fire brigade personnel. The fire was extinguished and reflashed a few times. The fire brigade used water, dry chemicals and foam when fighting the fire. The source of the fire at the bearing is under investigation by the licensee.
The licensee reports that the fire is out and the investigation determined that the most likely source of the fire was oil pooled under the bearing pedestal. No current oil leakage was found. The licensee planned on contacting the turbine vendor prior to returning the plant to full power. The Unusual Event was terminated at 1541 CDT. Notified R4DO (G. Sanborn), DIRO (D. Weaver), NRR EO (T. Reis), DHS (J. Clardy) and FEMA (J. Dunker). |
| Where | |
|---|---|
Cooper  Nebraska (NRC Region 4) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-3.72 h-0.155 days <br />-0.0221 weeks <br />-0.0051 months <br />) | |
| Opened: | Clyde Edington 13:47 Oct 16, 2003 |
| NRC Officer: | Rich Laura |
| Last Updated: | Oct 16, 2003 |
| 40254 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (65 %) |
WEEKMONTHYEARENS 539342019-03-15T10:46:00015 March 2019 10:46:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration En Revision Imported Date 3/25/2019 ENS 538092018-12-29T06:00:00029 December 2018 06:00:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notice of Unusual Event Due to Toxic Gas and Fire ENS 530692017-11-14T17:18:00014 November 2017 17:18:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Hydrogen Line Leak ENS 522212016-09-03T12:10:0003 September 2016 12:10:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Seismic Event Alarm ENS 477602012-03-22T15:34:00022 March 2012 15:34:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notice of Unusual Event - Potentially Hazardous Atmosphere Due to Freon Leak ENS 469692011-06-19T09:02:00019 June 2011 09:02:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Missouri River Flooding ENS 460332010-06-22T07:06:00022 June 2010 07:06:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration River Water Level Above 899 Feet ENS 454282009-10-12T21:03:00012 October 2009 21:03:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of Unusual Event Due to Small Fire Lasting Greater than 10 Minutes ENS 429852006-11-11T11:30:00011 November 2006 11:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to an Electrical Fire Involving Heat Trace ENS 427282006-07-25T20:41:00025 July 2006 20:41:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Fire Alarm ENS 424662006-04-02T19:04:0002 April 2006 19:04:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Adverse Weather Conditions ENS 424312006-03-20T13:56:00020 March 2006 13:56:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Small Fire Inside Protected Area ENS 402542003-10-16T17:30:00016 October 2003 17:30:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event at Cooper Due to Small Fire at a Turbine Bearing 2019-03-15T10:46:00 | |
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