ENS Event | |
|---|---|
12:51 Jul 21, 2020 | |
| Title | Technical Specification Required Shutdown |
| Event Description | At 0851 EDT on July 21, 2020, a Technical Specification required shutdown was initiated at Robinson Unit 2. Technical Specification LCO 3.0.3 was entered due to LCO 3.1.7 not being met as a result of indication loss on Control Rod positions with more than one position indication inoperable for a group. LCO 3.0.3 was entered at 0752 EDT to initiate action within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> to place the unit in MODE 3 within 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />. Since a Technical Specification required shutdown was initiated, this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(i).
Technical Specification LCO 3.0.3 was exited at 1003 EDT on July 21, 2020. There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified. Shutdown was initiated and power was reduced approximately 3 percent. Reactor power was back to 98.5 percent at the time of notification. |
| Where | |
|---|---|
Robinson  South Carolina (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown | |
| Time - Person (Reporting Time:+-0.15 h-0.00625 days <br />-8.928571e-4 weeks <br />-2.0547e-4 months <br />) | |
| Opened: | Kirk Schauer 12:42 Jul 21, 2020 |
| NRC Officer: | Ossy Font |
| Last Updated: | Jul 21, 2020 |
| 54796 - NRC Website
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WEEKMONTHYEARENS 547962020-07-21T12:51:00021 July 2020 12:51:00
[Table view]10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown ENS 476002012-01-17T23:14:00017 January 2012 23:14:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Unit 2 Commenced a Tech Spec Required Shutdown After Declaring Station Battery "B" Inoperable 2020-07-21T12:51:00 | |