ENS 51931: Difference between revisions
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| event date = 05/15/2016 11:18 CDT | | event date = 05/15/2016 11:18 CDT | ||
| last update date = 05/15/2016 | | last update date = 05/15/2016 | ||
| title = Unusual Event Declared Due | | title = Unusual Event Declared Due to Excessive Unidentified Leakage During Plant Startup | ||
| event text = Unit 2 experienced RCS Leakage, potentially pressure boundary leakage, or Unidentified Leakage greater than 10 gpm for [greater than] 15 minutes. Reactor Vessel Flange Temperature High Leakoff alarm was received. This met threshold for declaration of an Unusual Event at 1118 CDT per MU6. Unit 2 is currently in MODE 3. Investigation is in progress to identify specific leakage location. | | event text = Unit 2 experienced RCS Leakage, potentially pressure boundary leakage, or Unidentified Leakage greater than 10 gpm for [greater than] 15 minutes. Reactor Vessel Flange Temperature High Leakoff alarm was received. This met threshold for declaration of an Unusual Event at 1118 CDT per MU6. Unit 2 is currently in MODE 3. Investigation is in progress to identify specific leakage location. | ||
The plant is stable, leakage indicates about 32 gpm and the startup has been stopped. There is no impact on Unit 1. | The plant is stable, leakage indicates about 32 gpm and the startup has been stopped. There is no impact on Unit 1. | ||
Latest revision as of 21:45, 1 March 2018
| Where | |
|---|---|
Byron  Illinois (NRC Region 3) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-3.73 h-0.155 days <br />-0.0222 weeks <br />-0.00511 months <br />) | |
| Opened: | Ricardo Rosas 12:34 May 15, 2016 |
| NRC Officer: | Vince Klco |
| Last Updated: | May 15, 2016 |
| 51931 - NRC Website
| |
Byron with 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration | |