Event Notification Report for January 27, 2026
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
01/26/2026 - 01/27/2026
EVENT NUMBERS
58129
58129
Power Reactor
Event Number: 58129
Facility: Comanche Peak
Region: 4 State: TX
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Bryan Burke
HQ OPS Officer: Kerby Scales
Region: 4 State: TX
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Bryan Burke
HQ OPS Officer: Kerby Scales
Notification Date: 01/26/2026
Notification Time: 18:46 [ET]
Event Date: 01/26/2026
Event Time: 18:23 [CST]
Last Update Date: 01/26/2026
Notification Time: 18:46 [ET]
Event Date: 01/26/2026
Event Time: 18:23 [CST]
Last Update Date: 01/26/2026
Emergency Class: Unusual Event
10 CFR Section:
50.72(a) (1) (i) - Emergency Declared
10 CFR Section:
50.72(a) (1) (i) - Emergency Declared
Person (Organization):
Dixon, John (R4DO)
Williams, Kevin (NSIR)
Monninger, John (R4 RA)
Groom, Jeremy (NRR)
Grant, Jeffery (IR)
Dixon, John (R4DO)
Williams, Kevin (NSIR)
Monninger, John (R4 RA)
Groom, Jeremy (NRR)
Grant, Jeffery (IR)
| 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 |
UNUSUAL EVENT - SECURITY THREAT
The following information was provided by the licensee via phone:
On January 26, 2026, at 1823 CST, a Notice of Unusual Event was declared on emergency action level HU1.1 due to a security event.
The NRC Resident Inspector, the State of Texas, and local authorities have been notified.
Notified DHS SWO, FEMA Operations Center, FEMA NWC, CISA Central Watch Officer, CWMD Watch Desk, DHS Nuclear SSA (email), DHS NRCC THD Desk (email).
* * * UPDATE ON 01/26/2026 AT 2058 EST FROM MATT MAGER TO KERBY SCALES * * *
The following information provided by the licensee via phone:
On January 26, 2026, at 1940 CST, the Unusual Event was terminated.
The NRC Resident Inspector was notified.
Notified R4RA (Monninger), NRR (Groom), NSIR (Williams), R4DO (Dixon), NRR EO (Mckenna), IR MOC (Grant), R4PAO (Smith).
Notified DHS SWO, FEMA Operations Center, FEMA NWC, CISA Central Watch Officer, CWMD Watch Desk, DHS Nuclear SSA (email), DHS NRCC THD Desk (email).
The following information was provided by the licensee via phone:
On January 26, 2026, at 1823 CST, a Notice of Unusual Event was declared on emergency action level HU1.1 due to a security event.
The NRC Resident Inspector, the State of Texas, and local authorities have been notified.
Notified DHS SWO, FEMA Operations Center, FEMA NWC, CISA Central Watch Officer, CWMD Watch Desk, DHS Nuclear SSA (email), DHS NRCC THD Desk (email).
* * * UPDATE ON 01/26/2026 AT 2058 EST FROM MATT MAGER TO KERBY SCALES * * *
The following information provided by the licensee via phone:
On January 26, 2026, at 1940 CST, the Unusual Event was terminated.
The NRC Resident Inspector was notified.
Notified R4RA (Monninger), NRR (Groom), NSIR (Williams), R4DO (Dixon), NRR EO (Mckenna), IR MOC (Grant), R4PAO (Smith).
Notified DHS SWO, FEMA Operations Center, FEMA NWC, CISA Central Watch Officer, CWMD Watch Desk, DHS Nuclear SSA (email), DHS NRCC THD Desk (email).