Skip to main content

Event Notification Report for April 01, 2020

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
03/31/2020 - 04/01/2020

EVENT NUMBERS
546305463154632

Power Reactor
Event Number: 54630
Facility: COLUMBIA GENERATING STATION
Region: 4     State: WA
Unit: [2] [] []
RX Type: [2] GE-5
NRC Notified By: DAN SHARPE
HQ OPS Officer: DONALD NORWOOD
Notification Date: 04/01/2020
Notification Time: 19:07 [ET]
Event Date: 04/01/2020
Event Time: 12:02 [PDT]
Last Update Date: 04/01/2020
Emergency Class: NON EMERGENCY
10 CFR Section:
26.719 - FITNESS FOR DUTY
Person (Organization):
VINCENT GADDY (R4DO)
FFD GROUP (EMAIL)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N Y 100 Power Operation 100 Power Operation
Event Text
FITNESS-FOR-DUTY REPORT - LICENSED OPERATOR CONFIRMED POSITIVE FOR ALCOHOL

A licensed operator had a confirmed positive for alcohol during a random fitness-for-duty test. The employee's access to the plant has been terminated.

The NRC Resident Inspector has been notified.


Power Reactor
Event Number: 54631
Facility: MILLSTONE
Region: 1     State: CT
Unit: [] [] [3]
RX Type: [1] GE-3,[2] CE,[3] W-4-LP
NRC Notified By: KEVIN PERKINS
HQ OPS Officer: BRIAN LIN
Notification Date: 04/01/2020
Notification Time: 19:11 [ET]
Event Date: 04/01/2020
Event Time: 16:25 [EDT]
Last Update Date: 04/01/2020
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
ANNE DeFRANCISCO (R1DO)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
3 A/R Y 100 Power Operation 0 Hot Standby
Event Text
AUTOMATIC REACTOR TRIP DUE TO CIRCUIT FAULT

On April 1, 2020, at 1625 EDT, Milllstone Unit 3 was in Mode 1, at 100 percent power, when an automatic reactor trip occurred following a main generator trip. The cause was due to a circuit fault between the main generator breaker and the offsite switchyard. The reactor trip was not complicated and the reactor remains stable in Mode 3. One of the two offsite electrical sources remain inoperable with an investigation of the circuit fault underway. Decay heat removal is maintained by the main condenser. There was no effect on Unit 2.

The NRC Resident Inspector was notified. The licensee notified State and local government agencies.


Power Reactor
Event Number: 54632
Facility: WATERFORD
Region: 4     State: LA
Unit: [3] [] []
RX Type: [3] CE
NRC Notified By: KEVIN HALE
HQ OPS Officer: BRIAN LIN
Notification Date: 04/01/2020
Notification Time: 21:05 [ET]
Event Date: 04/01/2020
Event Time: 10:02 [CDT]
Last Update Date: 04/01/2020
Emergency Class: NON EMERGENCY
10 CFR Section:
26.719 - FITNESS FOR DUTY
Person (Organization):
VINCENT GADDY (R4DO)
FFD GROUP (EMAIL)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
3 N Y 100 Power Operation 100 Power Operation
Event Text
FITNESS FOR DUTY (FFD) POLICY VIOLATION

On April 1, 2020, a licensed senior reactor operator, returning from a leave of absence, disclosed a Fitness-For-Duty policy violation, which occurred on July 29, 2019. The individual's site access has been removed.

The NRC Resident Inspector has been notified.