ENS 40215
From kanterella
Jump to navigation
Jump to search
ENS Event | |
---|---|
19:00 Oct 2, 2003 | |
Title | Loss of Safe Shutdown Capability Due to All Oprm Channels Being Declared Inoperable. |
Event Description | 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 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. 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. This report is being made in accordance with 10CFR50.72(b)(3)(v), Any event or condition that could have prevented the fulfillment of the safety function of a system needed to shut down the reactor and maintain it in a safe shutdown condition. The Licensee will inform the NRC Resident Inspector. |
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
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 40215\u003C/a\u003E - \u003Ca href=\"/Fermi\" title=\"Fermi\"\u003EFermi\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ELoss of Safe Shutdown Capability Due to All Oprm Channels Being Declared Inoperable.\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 40215 - Fermi\n","link":"","lat":41.96295277777778,"lon":-83.25779444444444,"icon":"/w/images/5/5b/DTE_Energy_icon.png"}],"imageoverlays":null} | |
Unit 2 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
Retrieved from "https://kanterella.com/w/index.php?title=ENS_40215&oldid=428941"