ENS 48926: Difference between revisions
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| event date = 04/16/2013 00:37 CDT | | event date = 04/16/2013 00:37 CDT | ||
| last update date = 04/16/2013 | | last update date = 04/16/2013 | ||
| title = Loss | | title = Loss of Main Control Board Annunciation During Loss-Of-Offsite-Power Test | ||
| event text = This is an 8-hour report of a loss of emergency preparedness capabilities as required by 10CFR50.72(b)(3)(xiii). | | event text = This is an 8-hour report of a loss of emergency preparedness capabilities as required by 10CFR50.72(b)(3)(xiii). | ||
At 0037 CDT on 4/16/13, during the performance of an 'A' train loss-of-offsite-power test per procedure FNP-2-STP-80.14, Farley Unit 2 experienced a complete loss of main control board annunciation. Emergency Power Board annunciators are unaffected. No emergency action level criteria have been exceeded as a result of the loss of annunciation, however, annunciators normally relied upon for emergency assessment are not functional. Troubleshooting to identify the cause of the loss of annunciation is in progress. No estimate for restoring annunciator power is currently available. Compensatory measures for critical parameter monitoring have been established and implemented. Unit 2 plant conditions remain stable in mode 5. Unit 1 is unaffected by this event. There has been no release of radioactivity to the environment. | At 0037 CDT on 4/16/13, during the performance of an 'A' train loss-of-offsite-power test per procedure FNP-2-STP-80.14, Farley Unit 2 experienced a complete loss of main control board annunciation. Emergency Power Board annunciators are unaffected. No emergency action level criteria have been exceeded as a result of the loss of annunciation, however, annunciators normally relied upon for emergency assessment are not functional. Troubleshooting to identify the cause of the loss of annunciation is in progress. No estimate for restoring annunciator power is currently available. Compensatory measures for critical parameter monitoring have been established and implemented. Unit 2 plant conditions remain stable in mode 5. Unit 1 is unaffected by this event. There has been no release of radioactivity to the environment. | ||
Latest revision as of 21:01, 1 March 2018
| Where | |
|---|---|
Farley  Alabama (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+3.3 h0.138 days <br />0.0196 weeks <br />0.00452 months <br />) | |
| Opened: | Darrin Gard 08:55 Apr 16, 2013 |
| NRC Officer: | Steve Sandin |
| Last Updated: | Apr 16, 2013 |
| 48926 - NRC Website
| |