Event Notification Report for October 06, 2022
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/05/2022 - 10/06/2022
Power Reactor
Event Number: 56147
Facility: Vogtle
Region: 2 State: GA
Unit: [3] [] []
RX Type: [3] W-AP1000,[4] W-AP1000
NRC Notified By: Chad Everitt
HQ OPS Officer: Ernest West
Region: 2 State: GA
Unit: [3] [] []
RX Type: [3] W-AP1000,[4] W-AP1000
NRC Notified By: Chad Everitt
HQ OPS Officer: Ernest West
Notification Date: 10/06/2022
Notification Time: 10:06 [ET]
Event Date: 10/06/2022
Event Time: 02:44 [EDT]
Last Update Date: 10/06/2022
Notification Time: 10:06 [ET]
Event Date: 10/06/2022
Event Time: 02:44 [EDT]
Last Update Date: 10/06/2022
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 | N | N | 0 | Defueled | 0 | Defueled |
AUTOMATIC ACTUATION OF REACTOR PROTECTION SYSTEM (RPS)
The following information was provided by the licensee via email:
"At 0244 EDT on 10/06/2022, with Unit 3 Defueled at 0 percent power, an actuation of the RPS occurred during restoration of Division B Class 1E DC and uninterruptible power supply system. The reason for the RPS actuation was due to the opening of the Division B passive residual heat removal (PRHR) heat exchanger outlet flow control valve. The reactor trip breakers were in an open state at the time of the event when the RPS signal was received.
"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."
The following information was provided by the licensee via email:
"At 0244 EDT on 10/06/2022, with Unit 3 Defueled at 0 percent power, an actuation of the RPS occurred during restoration of Division B Class 1E DC and uninterruptible power supply system. The reason for the RPS actuation was due to the opening of the Division B passive residual heat removal (PRHR) heat exchanger outlet flow control valve. The reactor trip breakers were in an open state at the time of the event when the RPS signal was received.
"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."
Agreement State
Event Number: 56150
Rep Org: Louisiana Radiation Protection Div
Licensee: Cleco Power LLC
Region: 4
City: Lena State: LA
County:
License #: LA-3719-L01
Agreement: Y
Docket:
NRC Notified By: James Pate
HQ OPS Officer: Kerby Scales
Licensee: Cleco Power LLC
Region: 4
City: Lena State: LA
County:
License #: LA-3719-L01
Agreement: Y
Docket:
NRC Notified By: James Pate
HQ OPS Officer: Kerby Scales
Notification Date: 10/06/2022
Notification Time: 14:05 [ET]
Event Date: 10/06/2022
Event Time: 12:13 [CDT]
Last Update Date: 10/06/2022
Notification Time: 14:05 [ET]
Event Date: 10/06/2022
Event Time: 12:13 [CDT]
Last Update Date: 10/06/2022
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Dixon, John (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Dixon, John (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - GAUGES FAILED SHUTTER CHECK
The following is a summary of information received from the Louisiana Department of Environmental Quality (the Department) via email:
On October 6, 2022, Cleco Power, LLC notified the Department that four of their fixed gauges failed their shutter checks.
1. Two Texas Nuclear Model 5197 with serial number B1769 & B1770. They each contained a 100 mCi Cs-137 source (model number: 570-57157C).
2. Two Texas Nuclear Model 5192 with serial number B2503 & B2504. They each contained a 20 mCi Cs-137 source.
The two Model 5192 will be repaired using replacement parts by BBP Sales. The two Model 5197 will be disposed of and not placed back into service.
Louisiana Event Report ID Number: LA20220010
The following is a summary of information received from the Louisiana Department of Environmental Quality (the Department) via email:
On October 6, 2022, Cleco Power, LLC notified the Department that four of their fixed gauges failed their shutter checks.
1. Two Texas Nuclear Model 5197 with serial number B1769 & B1770. They each contained a 100 mCi Cs-137 source (model number: 570-57157C).
2. Two Texas Nuclear Model 5192 with serial number B2503 & B2504. They each contained a 20 mCi Cs-137 source.
The two Model 5192 will be repaired using replacement parts by BBP Sales. The two Model 5197 will be disposed of and not placed back into service.
Louisiana Event Report ID Number: LA20220010