Event Notification Report for May 25, 2019
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
05/24/2019 - 05/25/2019
EVENT NUMBERS
54090
Power Reactor
Event Number: 54090
Facility: BRAIDWOOD
Region: 3 State: IL
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: MARK TUBERGEN
HQ OPS Officer: ANDREW WAUGH
Region: 3 State: IL
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: MARK TUBERGEN
HQ OPS Officer: ANDREW WAUGH
Notification Date: 05/26/2019
Notification Time: 01:58 [ET]
Event Date: 05/25/2019
Event Time: 19:30 [CDT]
Last Update Date: 05/26/2019
Notification Time: 01:58 [ET]
Event Date: 05/25/2019
Event Time: 19:30 [CDT]
Last Update Date: 05/26/2019
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):
JAMNES CAMERON (R3DO)
JAMNES CAMERON (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 MAIN CONTROL ROOM AREA RADIATION MONITORS
"At 1930 [CDT] on 5/25/2019, communications were lost with the main control room area radiation monitors. These detectors are used to determine if an emergency action level (EAL) has been reached for initiating condition RA3 (Radiation levels that impede access to equipment necessary for normal plant operations, cooldown, or shutdown).
"This unplanned loss of the ability to evaluate an EAL for initiating condition RA3 is considered a loss of emergency classification capability and is reportable as a Major Loss of Emergency Preparedness Capabilities per 10 CFR 50.72(b)(3)(xiii). This is an 8-hour reportable notification.
"Portable area radiation monitors have been established as a compensatory measure per station procedures.
"The NRC Resident Inspector has been notified."
"At 1930 [CDT] on 5/25/2019, communications were lost with the main control room area radiation monitors. These detectors are used to determine if an emergency action level (EAL) has been reached for initiating condition RA3 (Radiation levels that impede access to equipment necessary for normal plant operations, cooldown, or shutdown).
"This unplanned loss of the ability to evaluate an EAL for initiating condition RA3 is considered a loss of emergency classification capability and is reportable as a Major Loss of Emergency Preparedness Capabilities per 10 CFR 50.72(b)(3)(xiii). This is an 8-hour reportable notification.
"Portable area radiation monitors have been established as a compensatory measure per station procedures.
"The NRC Resident Inspector has been notified."