Event Notification Report for February 18, 2023
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/17/2023 - 02/18/2023
EVENT NUMBERS
56371
56371
Power Reactor
Event Number: 56371
Facility: Browns Ferry
Region: 2 State: AL
Unit: [2] [] []
RX Type: [1] GE-4,[2] GE-4,[3] GE-4
NRC Notified By: Stewart Wetzel
HQ OPS Officer: Eric Simpson
Region: 2 State: AL
Unit: [2] [] []
RX Type: [1] GE-4,[2] GE-4,[3] GE-4
NRC Notified By: Stewart Wetzel
HQ OPS Officer: Eric Simpson
Notification Date: 02/18/2023
Notification Time: 11:25 [ET]
Event Date: 02/18/2023
Event Time: 04:39 [CST]
Last Update Date: 02/18/2023
Notification Time: 11:25 [ET]
Event Date: 02/18/2023
Event Time: 04:39 [CST]
Last Update Date: 02/18/2023
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(ii)(A) - Degraded Condition
10 CFR Section:
50.72(b)(3)(ii)(A) - Degraded Condition
Person (Organization):
Miller, Mark (R2DO)
Miller, Mark (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | N | 0 | Refueling | 0 | Refueling |
DEGRADED CONDITION
The following information was provided by the licensee via email:
"On February 17, 2023 during the planned U2R22 outage on Browns Ferry Nuclear Plant Unit 2, personnel entered the Unit 2 drywell for leak identification. Personnel discovered a cracked weld on the 2A recirculation pump discharge isolation valve drain line. At 0439 CST on February 18, 2023, following engineering evaluation, this drain line was determined to be ASME Code Class 1 piping.
"This constitutes an 8-hour NRC notification in accordance with 10 CFR 50.72(b)(3)(ii)(A) - Any event or condition that results in the condition of the nuclear power plant, including its principal safety barriers, being seriously degraded.
"The NRC Resident Inspector has been notified."
The following information was provided by the licensee via email:
"On February 17, 2023 during the planned U2R22 outage on Browns Ferry Nuclear Plant Unit 2, personnel entered the Unit 2 drywell for leak identification. Personnel discovered a cracked weld on the 2A recirculation pump discharge isolation valve drain line. At 0439 CST on February 18, 2023, following engineering evaluation, this drain line was determined to be ASME Code Class 1 piping.
"This constitutes an 8-hour NRC notification in accordance with 10 CFR 50.72(b)(3)(ii)(A) - Any event or condition that results in the condition of the nuclear power plant, including its principal safety barriers, being seriously degraded.
"The NRC Resident Inspector has been notified."