Event Notification Report for August 25, 2023
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
08/24/2023 - 08/25/2023
EVENT NUMBERS
56698
56698
Power Reactor
Event Number: 56698
Facility: Byron
Region: 3 State: IL
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Kevin Sanford
HQ OPS Officer: Donald Norwood
Region: 3 State: IL
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Kevin Sanford
HQ OPS Officer: Donald Norwood
Notification Date: 08/25/2023
Notification Time: 23:39 [ET]
Event Date: 08/25/2023
Event Time: 16:00 [CDT]
Last Update Date: 08/25/2023
Notification Time: 23:39 [ET]
Event Date: 08/25/2023
Event Time: 16:00 [CDT]
Last Update Date: 08/25/2023
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(xiii) - Loss Comm/Asmt/Response
10 CFR Section:
50.72(b)(3)(xiii) - Loss Comm/Asmt/Response
Person (Organization):
Skokowski, Richard (R3DO)
Skokowski, Richard (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
LOSS OF EMERGENCY ASSESSMENT CAPABILITY
The following information was provided by the licensee via email:
"At approximately 1600 CDT on 8/25/2023, a partial loss of the commercial phone communications system occurred that affects the emergency notification system (ENS) and the functionality of an emergency response facility.
"This is an eight-hour, non-emergency notification of a loss of emergency assessment capability. This event is reportable in accordance with 10 CFR 50.72(b)(3)(xiii).
"Communications via alternate methods were subsequently established. The telecommunications provider has not provided an estimated repair time.
"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 approximately 1600 CDT on 8/25/2023, a partial loss of the commercial phone communications system occurred that affects the emergency notification system (ENS) and the functionality of an emergency response facility.
"This is an eight-hour, non-emergency notification of a loss of emergency assessment capability. This event is reportable in accordance with 10 CFR 50.72(b)(3)(xiii).
"Communications via alternate methods were subsequently established. The telecommunications provider has not provided an estimated repair time.
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."