Event Notification Report for February 25, 2026

AGREEMENT STATE REPORT - STUCK SHUTTER

The following information was provided by the Texas Department of State Health (Department) Services via phone and email:

"On February 17, 2026, the licensee notified the Department that the shutter on a Vega SH-F2 gauge, which contains a 500-millicurie (original activity) cesium-137 source, failed to close during testing. The licensee reported that a contractor will be contacted to repair the gauge shutter. The licensee also stated that there is no risk of additional radiation exposure to members of the general public or radiation workers due to this on/off mechanism failure. Additional information will be provided as it is received, in accordance with SA-300."

Texas incident number: 10263
Texas NMED: TX260003

* * * UPDATE ON FEBRUARY 23, 2026 AT 1125 EST FROM AUTHUR TUCKER TO BILL NYTKO * * *

The following is a summary of information provided by the Department via email:

"The license number provided for this [incident] by the licensee was incorrect. The correct license number is L03119."

Notified R4DO (Agrawal), NMSS Events Notification (email)

UNUSUAL EVENT - LOSS OF ALL OFFSITE POWER

The following information was provided by the licensee via phone and email:

"At 0209 EST on 02/23/2026, with Hope Creek in Mode 1 at 100 percent power, the reactor automatically tripped due to a loss of offsite power. All emergency diesel generators (EDGs) started and loaded as expected to power vital buses. Operations responded and stabilized the plant in Mode 3. Reactor water level is being maintained via high pressure coolant injection (HPCI) and reactor core isolation cooling (RCIC). Reactor pressure is being maintained using safety relief valves (SRVs).

"Due to the reactor protection system actuation while critical, this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(iv)(B). An Unusual Event (SU1.1) was declared at 0229 on 02/23/2026, due to a loss of offsite power to all vital buses for greater than 15 minutes.

"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified, and all offsite notifications have been made.

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 02/23/2026 AT 1352 EST FROM HOPE CREEK TO NESTOR MAKRIS * * *

On 02/23/2026, at 1340 EST, Hope Creek terminated their Unusual Event (SU1.1), which was declared due to a loss of offsite power.

FITNESS FOR DUTY EVENT

The following information was provided by the licensee via fax or email:

On February 23, 2026, at 1034 EST, it was determined that a non-licensed supervisor failed a test specified by the fitness for duty (FFD) testing program. The individual's unescorted site access has been terminated.

"The NRC Resident and Region 3 Inspectors had been notified."