18:48 May 16, 2019
This is a non-emergency notification from Waterford 3.
On May 16, 2019, at 1348 CDT, Waterford 3 experienced an automatic reactor trip due to Steam Generator number 1 high level, which was the result of a Main Turbine trip and subsequent reactor power cutback which had occurred at 1345 CDT. The cause of the Main Turbine trip is currently under investigation.
Subsequent to the Reactor trip, Main Feedwater Isolation Valves number 1 and number 2 closed on high Steam Generator levels. Emergency Feedwater automatically actuated for Steam Generator number 2 at 1419 CDT and Steam Generator number 1 at 1425 CDT. Main Feedwater was restored to both Steam Generators by 1629 CDT.
The plant entered the Emergency Operating Procedure for an uncomplicated reactor trip and is in the process of transitioning to the normal operating shutdown procedure. The plant is currently in Mode 3 and stable with Main Feedwater feeding and maintaining both Steam Generators.
The NRC Senior Resident Inspector has been notified.All control rods fully inserted. Decay heat is being removed through the main condenser. The plant is in a normal shutdown electrical lineup.
Louisiana (NRC Region 4)
|10 CFR 50.72(b)(2)(iv)(B), RPS Actuation|
10 CFR 50.72(b)(3)(iv)(A), ECCS Actuation
|LER:||look for an ler...|
|Time - Person (Reporting Time:+-0.68 h|
18:07 May 16, 2019
|NRC Officer:||Donald Norwood|
|Last Updated:||May 16, 2019|
|54068 - NRC Website|