Event Notification Report for January 14, 2023
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
01/13/2023 - 01/14/2023
EVENT NUMBERS
56311
56311
Power Reactor
Event Number: 56311
Facility: Vogtle
Region: 2 State: GA
Unit: [3] [] []
RX Type: [3] W-AP1000,[4] W-AP1000
NRC Notified By: Greg Crosby
HQ OPS Officer: Adam Koziol
Region: 2 State: GA
Unit: [3] [] []
RX Type: [3] W-AP1000,[4] W-AP1000
NRC Notified By: Greg Crosby
HQ OPS Officer: Adam Koziol
Notification Date: 01/14/2023
Notification Time: 14:05 [ET]
Event Date: 01/14/2023
Event Time: 07:21 [EST]
Last Update Date: 01/14/2023
Notification Time: 14:05 [ET]
Event Date: 01/14/2023
Event Time: 07:21 [EST]
Last Update Date: 01/14/2023
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
10 CFR Section:
50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
Person (Organization):
Miller, Mark (R2DO)
Miller, Mark (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 3 | M | N | 0 | Hot Standby | 0 | Hot Standby |
EN Revision Imported Date: 1/17/2023
EN Revision Text: MANUAL ACTUATION OF REACTOR PROTECTION SYSTEM (RPS)
The following information was provided by the licensee via email:
"At 0721 EST on 01/14/2023, with Unit 3 in Mode 3 at 0 percent power and reactor trip breakers open, a manual actuation of the RPS occurred while conducting pre-criticality testing. The RPS manual actuation was procedurally driven in response to low gland steam pressure, resulting in the necessity to break condenser vacuum following a trip of the auxiliary boiler. The reactor trip breakers were in an open state at the time of the event.
"This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the RPS.
"There was no impact on the health and safety of the public or plant personnel.
"The NRC Resident Inspector has been notified."
EN Revision Text: MANUAL ACTUATION OF REACTOR PROTECTION SYSTEM (RPS)
The following information was provided by the licensee via email:
"At 0721 EST on 01/14/2023, with Unit 3 in Mode 3 at 0 percent power and reactor trip breakers open, a manual actuation of the RPS occurred while conducting pre-criticality testing. The RPS manual actuation was procedurally driven in response to low gland steam pressure, resulting in the necessity to break condenser vacuum following a trip of the auxiliary boiler. The reactor trip breakers were in an open state at the time of the event.
"This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the RPS.
"There was no impact on the health and safety of the public or plant personnel.
"The NRC Resident Inspector has been notified."