ENS Event | |
|---|---|
01:02 May 25, 2006 | |
| Title | Unusual Event for a Fire Lasting Greater than Ten Minutes |
| Event Description | Licensee declared an Unusual Event due to a fire that was not extinguished within 10 minutes - EAL U4A. There were no flames, only smoke. Control Room received a Bus 2 ground alarm, reduced power, secured the B Main Feedwater Pump, inserted control rods below the Maximum Extended Load Limit Analysis (MELLA) line, and then secured the C Condensate Pump. The ground alarm cleared after securing the C Condensate Pump.
CO2 discharged automatically into the switchgear room due to the smoke in the switchgear room. The switchgear room has been ventilated, site personnel have entered and no other damage to the switchgear has been identified other than the C Condensate pump breaker. Offsite Fire (Vernon Fire Department) responded to the site and is assisting with ventilation. One ambulance is responding to transport a Fire Brigade member that is not feeling well due to heat. The licensee has notified the NRC Resident Inspector, and State and Local emergency response organizations. Notified R1 PAO (Screnci).
Licensee called to terminate the Unusual Event. The plant is in a stable condition with no other outstanding problems. Ventilation of the switchgear room is continuing and air samples are being analyzed. The licensee has notified the NRC Resident Inspector, and State and Local emergency response organizations. Notified R1 (Holian, Powell, Bores), IRD (Blount), NRR EO (Haney), R1DO (Gray), DHS (Lee) and FEMA (Casto) |
| Where | |
|---|---|
| Vermont Yankee File:NorthStar Vermont Yankee icon.png Vermont (NRC Region 1) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-3.17 h-0.132 days <br />-0.0189 weeks <br />-0.00434 months <br />) | |
| Opened: | Kelly Robinson 21:52 May 24, 2006 |
| NRC Officer: | Jeff Rotton |
| Last Updated: | May 24, 2006 |
| 42605 - NRC Website
Loading map... | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (56 %) |
Vermont YankeeFile:NorthStar Vermont Yankee icon.png with 10 CFR 50.72(a)(1)(i), Emergency Class Declaration | |
WEEKMONTHYEARENS 462122010-08-29T23:05:00029 August 2010 23:05:00
[Table view]10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Loss of Annuciators in the Control Room ENS 460382010-06-23T18:25:00023 June 2010 18:25:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to an Earthquake Felt Onsite ENS 426052006-05-25T01:02:00025 May 2006 01:02:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event for a Fire Lasting Greater than Ten Minutes ENS 408272004-06-18T10:50:00018 June 2004 10:50:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to a Main Transformer Fire Lasting Fire Longer than 10 Minutes. 2010-08-29T23:05:00 | |
