ENS 48662: Difference between revisions
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StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
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| event date = 11/29/2012 22:00 EST | | event date = 11/29/2012 22:00 EST | ||
| last update date = 01/10/2013 | | last update date = 01/10/2013 | ||
| title = 60-Day Optional Telephonic Notification | | title = 60-Day Optional Telephonic Notification of Invalid System Actuation | ||
| event text = This telephone notification is being made for an invalid actuation in accordance with 10 CFR 50.73(a)(2)(iv)(A) following the reporting guidance of 10 CFR 50.73(a)(1) and is not considered a Licensee Event Report. | | event text = This telephone notification is being made for an invalid actuation in accordance with 10 CFR 50.73(a)(2)(iv)(A) following the reporting guidance of 10 CFR 50.73(a)(1) and is not considered a Licensee Event Report. | ||
With Unit 2 at Cold Shutdown (about 105?F and depressurized), an invalid actuation of the Main Feedwater (FW) isolation occurred at 2200 [EST] during removal of the 'A' Train Hi Consequence Limiting Safeguards (CLS) fuses. This action caused the 'A' train FW isolation relay to actuate and, as designed, tripped the operating 'B' Main Feed Pump (MFP) and the Main Turbine, which was latched for testing. The 'A' MFP was not in operation at the time of the event. | With Unit 2 at Cold Shutdown (about 105?F and depressurized), an invalid actuation of the Main Feedwater (FW) isolation occurred at 2200 [EST] during removal of the 'A' Train Hi Consequence Limiting Safeguards (CLS) fuses. This action caused the 'A' train FW isolation relay to actuate and, as designed, tripped the operating 'B' Main Feed Pump (MFP) and the Main Turbine, which was latched for testing. The 'A' MFP was not in operation at the time of the event. | ||
Latest revision as of 22:02, 1 March 2018
| Where | |
|---|---|
Surry  Virginia (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation | |
| Time - Person (Reporting Time:+992.07 h41.336 days <br />5.905 weeks <br />1.359 months <br />) | |
| Opened: | Barry Garber 11:04 Jan 10, 2013 |
| NRC Officer: | Donald Norwood |
| Last Updated: | Jan 10, 2013 |
| 48662 - NRC Website
| |