Event Notification Report for June 04, 2019
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
06/03/2019 - 06/04/2019
Power Reactor
Event Number: 54099
Facility: COOPER
Region: 4 State: NE
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: TERRELL HIGGINS
HQ OPS Officer: JEFFREY WHITED
Region: 4 State: NE
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: TERRELL HIGGINS
HQ OPS Officer: JEFFREY WHITED
Notification Date: 06/04/2019
Notification Time: 11:39 [ET]
Event Date: 06/04/2019
Event Time: 08:15 [CDT]
Last Update Date: 06/04/2019
Notification Time: 11:39 [ET]
Event Date: 06/04/2019
Event Time: 08:15 [CDT]
Last Update Date: 06/04/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
RAY KELLAR (R4DO)
RAY KELLAR (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
ISSUANCE OF PRESS RELEASE DUE TO SPURIOUS ACTUATION OF EMERGENCY SIRENS
"On 06/04/2019, Nebraska Public Power District will issue a press release concerning the spurious actuation of emergency sirens near Cooper Nuclear Station and Indian Cave State Park.
"This is a four hour report per 10 CFR 50.72(b)(2)(xi) for any event or situation for which a news release is planned or notification to other government agencies has been or will be made which is related to heightened public or government concern."
The cause of the siren actuation is still under investigation.
The licensee notified the NRC Resident Inspector.
* * * UPDATE FROM TERRELL HIGGINS TO HOWIE CROUCH AT 1301 EDT ON 6/4/19 * * *
"During this event, State & local government agencies (Nemaha County, Atchison County, Richardson County, and Indian Cave State Park) were contacted regarding the spurious actuation of emergency sirens. This is an update to the original Event Notification # 54099."
Notified R4DO (Kellar).
"On 06/04/2019, Nebraska Public Power District will issue a press release concerning the spurious actuation of emergency sirens near Cooper Nuclear Station and Indian Cave State Park.
"This is a four hour report per 10 CFR 50.72(b)(2)(xi) for any event or situation for which a news release is planned or notification to other government agencies has been or will be made which is related to heightened public or government concern."
The cause of the siren actuation is still under investigation.
The licensee notified the NRC Resident Inspector.
* * * UPDATE FROM TERRELL HIGGINS TO HOWIE CROUCH AT 1301 EDT ON 6/4/19 * * *
"During this event, State & local government agencies (Nemaha County, Atchison County, Richardson County, and Indian Cave State Park) were contacted regarding the spurious actuation of emergency sirens. This is an update to the original Event Notification # 54099."
Notified R4DO (Kellar).
Power Reactor
Event Number: 54098
Facility: LIMERICK
Region: 1 State: PA
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: STEVEN BARCZYK
HQ OPS Officer: OSSY FONT
Region: 1 State: PA
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: STEVEN BARCZYK
HQ OPS Officer: OSSY FONT
Notification Date: 06/04/2019
Notification Time: 04:10 [ET]
Event Date: 06/04/2019
Event Time: 01:45 [EDT]
Last Update Date: 06/04/2019
Notification Time: 04:10 [ET]
Event Date: 06/04/2019
Event Time: 01:45 [EDT]
Last Update Date: 06/04/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
ERIN CARFANG (R1DO)
ERIN CARFANG (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | M/R | Y | 100 | Power Operation | 0 | Hot Shutdown |
MANUAL SCRAM DURING RAPID PLANT SHUTDOWN
"At 0145 EDT, on 6/4/19, Unit 2 was manually scrammed during a Rapid Plant Shutdown. At 64 percent reactor power, a Rapid Plant Shutdown was initiated due to lowering Main Condenser vacuum as a result of the loss of a plant electrical panel that powers Offgas System controls.
"The shutdown was normal and the plant is stable in Hot Shutdown with normal pressure control via the Main Turbine Bypass Valves to the Main Condenser and normal level control using Feedwater and Condensate. Main Condenser Vacuum has been restored."
The licensee notified the NRC Resident Inspector. Additionally, State and local government agencies were notified.
Prior to restarting Unit 2, an evaluation needs to be done due to the Unit 1 Diesel currently out of service for maintenance. The Unit 1 Diesel is a power supply for some of the common systems under the Unit 2 Technical Specifications and therefore required.
"At 0145 EDT, on 6/4/19, Unit 2 was manually scrammed during a Rapid Plant Shutdown. At 64 percent reactor power, a Rapid Plant Shutdown was initiated due to lowering Main Condenser vacuum as a result of the loss of a plant electrical panel that powers Offgas System controls.
"The shutdown was normal and the plant is stable in Hot Shutdown with normal pressure control via the Main Turbine Bypass Valves to the Main Condenser and normal level control using Feedwater and Condensate. Main Condenser Vacuum has been restored."
The licensee notified the NRC Resident Inspector. Additionally, State and local government agencies were notified.
Prior to restarting Unit 2, an evaluation needs to be done due to the Unit 1 Diesel currently out of service for maintenance. The Unit 1 Diesel is a power supply for some of the common systems under the Unit 2 Technical Specifications and therefore required.