ENS 40215: Difference between revisions
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StriderTol (talk | contribs) Created page by program invented by Mark Hawes |
StriderTol (talk | contribs) Created page by program invented by StriderTol |
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| event date = 10/02/2003 15:00 EDT | | event date = 10/02/2003 15:00 EDT | ||
| last update date = 10/02/2003 | | last update date = 10/02/2003 | ||
| title = Loss | | title = Loss of Safe Shutdown Capability Due to All Oprm Channels Being Declared Inoperable. | ||
| event text = On October 2, 2003, Detroit Edison received verbal confirmation from General Electric of a potential Non-Conservative Analysis of OPRM Period Tolerance and Corner Frequency. | | event text = On October 2, 2003, Detroit Edison received verbal confirmation from General Electric of a potential Non-Conservative Analysis of OPRM Period Tolerance and Corner Frequency. | ||
All OPRM channels have been declared inoperable. Technical Specifications 3.3.1.1 Action J requires an alternate method of detecting and suppressing thermal-hydraulic instabilities to be implemented within 12 hours. Alternate methods have been established to monitor for instability when operating in the Stability Awareness region, thus we are in compliance with the Technical Specifications. | All OPRM channels have been declared inoperable. Technical Specifications 3.3.1.1 Action J requires an alternate method of detecting and suppressing thermal-hydraulic instabilities to be implemented within 12 hours. Alternate methods have been established to monitor for instability when operating in the Stability Awareness region, thus we are in compliance with the Technical Specifications. | ||
Latest revision as of 21:25, 1 March 2018
| Where | |
|---|---|
Fermi  Michigan (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor | |
| Time - Person (Reporting Time:+-2.2 h-0.0917 days <br />-0.0131 weeks <br />-0.00301 months <br />) | |
| Opened: | David Coseo 16:48 Oct 2, 2003 |
| NRC Officer: | Jeff Rotton |
| Last Updated: | Oct 2, 2003 |
| 40215 - NRC Website
| |