ENS 45046: 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 = 04/13/2009 16:46 EDT | | event date = 04/13/2009 16:46 EDT | ||
| last update date = 05/07/2009 | | last update date = 05/07/2009 | ||
| title = Human Performance Error While Troubleshooting | | title = Human Performance Error While Troubleshooting a Power Supply | ||
| event text = This telephone notification, instead of a written LER is provided in accordance with 10CFR50.73(a)(1), to report an invalid actuation reportable under 10CFR50.73(a)(2)(iv)(A). | | event text = This telephone notification, instead of a written LER is provided in accordance with 10CFR50.73(a)(1), to report an invalid actuation reportable under 10CFR50.73(a)(2)(iv)(A). | ||
On 4/13/2009, during troubleshooting activities for a control room annunciator power supply problem, a 'D' channel LOCA Level 1 Isolation Logic relay trip occurred when the relay power supply was de-energized and then re-energized. De-energization of the relays caused the 'D' Emergency Diesel Generator (EDG) to auto start, the 'B' Control Room Emergency Filtration System to auto start and the 'D' Safety Auxiliaries Cooling System pump to auto start. The other components of this logic system were properly removed from service and did not actuate. | On 4/13/2009, during troubleshooting activities for a control room annunciator power supply problem, a 'D' channel LOCA Level 1 Isolation Logic relay trip occurred when the relay power supply was de-energized and then re-energized. De-energization of the relays caused the 'D' Emergency Diesel Generator (EDG) to auto start, the 'B' Control Room Emergency Filtration System to auto start and the 'D' Safety Auxiliaries Cooling System pump to auto start. The other components of this logic system were properly removed from service and did not actuate. | ||
Latest revision as of 22:12, 1 March 2018
| Where | |
|---|---|
Hope Creek  New Jersey (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation | |
| Time - Person (Reporting Time:+568.38 h23.683 days <br />3.383 weeks <br />0.779 months <br />) | |
| Opened: | Tom Fowler 13:09 May 7, 2009 |
| NRC Officer: | Mark Abramovitz |
| Last Updated: | May 7, 2009 |
| 45046 - NRC Website
| |