Event Notification Report for June 18, 2026

EN Revision Imported Date: 6/18/2026

EN Revision Text: AGREEMENT STATE REPORT - EXTERNAL RADIATION LEVEL ON SHIPMENT EXCEEDED LIMITS

The following information was provided by the Utah Division of Waste Management and Radiation Control (the Division) via email:

"Shipment 9075-01-0074 arrived at EnergySolutions' Clive disposal facility on May 19, 2025. As Division inspectors were performing incoming waste shipment inspections, [Division] staff surveyed and observed a trailer that exhibited a dose rate of 10.5 mrem/hour at 2 meters from the outer plane of the conveyance. Upon this discovery, the [Division] inspector informed EnergySolutions' shipping and receiving staff of the discrepancy, [who] indicated that they were already aware of said discrepancy.

"The transport vehicle is a curtain-side, flatbed trailer."

Additional license number UT 2300478.

* * * UPDATE ON 06/17/2026 AT 1634 EDT FROM GAGE FAUSTO TO JOSUE RAMIREZ * * *

The following update was provided by the Utah Division of Waste Management and Radiation Control (the Division) via email:

"This item was reported to the NMED database on May 19, 2025. After a formal investigation, it was determined that the package was within the [Nuclear Regulatory Commission/Department of Transportation] NRC/DOT dose limitations. UT-Battelle, the generator of this shipment, provided extensive documentation and photographic evidence of the dose measurement at 2 meters. The Division sent a letter to UT-Battelle withdrawing the notice of violation on December 26, 2025."

Notified R4DO (Roldan-Otero) and NMSS Events Notification (email).

Utah event report ID: UT 25001

AGREEMENT STATE REPORT - MEDICAL EVENT

The following information was provided by the California Radiation Control Program, specifically, the Los Angeles County Radiation Management via phone and email:

"The radiation safety officer at Kaiser Permanente Medical Care Program of Southern California contacted L.A. County Radiation Management on June 9, 2026, at approximately 1242 [PDT] to report a medical event that occurred on June 8, 2026.

"The event involved an underdose to a patient during the administration of Lu-177 Pluvicto to a patient. The prescribed dosage was 200 mCi, however, based on preliminary estimates, the patient received only approximately 10 to 15 percent of the intended dosage. An unknown amount of the radiopharmaceutical was spilled onto the disposable waterproof padding placed underneath the administration apparatus and a small amount was observed on the arm and clothing of the authorized user. Decontamination procedures were performed.

"Kaiser Permanente will conduct an investigation of the incident to determine the root cause and will develop and implement a corrective action plan. A follow-up written report will be submitted within 15 days in accordance with reporting requirements."

California event number: 060926

A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.

AGREEMENT STATE REPORT - RADIOGRAPHY CAMERA CABLE DRIVE FAILURE

The following information was provided by the New Mexico Radiation Control Program (the Program) via email:

"On June 9, 2026, at approximately 1200 MDT, a radiography crew operating a QSA Delta 880 camera with a 21 Ci Ir-192 source experienced a drive cable failure. The cable reportedly broke approximately 4 inches from the tip during operations. The event occurred southwest of Malaga, New Mexico.

"The radiographer immediately notified the radiation safety officer (RSO), who responded to the site and successfully performed source retrieval. The licensee is authorized for source retrieval activities. The source was fully returned to a safe and shielded position, and the device was secured. There was no indication of radiological exposure above regulatory limits, and no contamination or risk to the public has been identified at this time. The crank assembly associated with the failure was removed from service. Following retrieval, the equipment was evaluated by the RSO, and operations resumed using the device with the defective component no longer in use.

"Dosimetry reports have been requested for the RSO, radiographer, and assistant. A full written report is expected within 30 days.

"This event was reported to the Program at approximately 1151 MDT on June 10, 2026."

FITNESS FOR DUTY

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

"On June 15, 2026, at approximately 1749 [EDT], positive test results were confirmed on a random fitness for duty (FFD) test for a [contract] supplemental supervisor. The supplemental supervisor held unescorted access at Surry and North Anna Power Stations. No work on safety-related components was performed during this access period at Surry or North Anna. Individual was onsite to perform a walk down. Individual was denied unescorted access at Surry and North Anna Power Stations. FFD Evaluation will be submitted by the Dominion Energy Supervisor or designee at Surry and North Anna Power Stations.

"The NRC Resident Inspector was notified."

PART 21 - GENERAL ELECTRIC RELAY FAILURE

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

Curtiss Wright (CW) is submitting an evaluation report of a potential defect of a CW supplied relay, General Electric part number: 12IAV69A1A.
On January 26, 2026, Constellation notified Curtiss-Wright about the failure of a relay that was provided to Constellation on July 18, 2025. According to Constellation, the relay passed pre-installation bench testing but failed the functional test after replacement.
Constellation found that the power was no longer applied to the relay and had blown bus fuses. Checks of the new relay (failed relay) showed that wires were crossed, which shorted out the circuit.
On May 14, 2026, the relay was received by Curtiss-Wright from Constellation and Curtiss-Wright verified Constellation's assessment to be correct.

Because CW cannot establish a root cause, the following action is recommended:

CW has modified the dedication plan to specifically inspect the wiring to confirm the wiring of new items is equivalent to the originally qualified test sample prior to functional testing.
These actions should preclude a possible recurrence of this failure mechanism.

CW has not supplied P/N: 12IAV69A1A to any other end users.

Additional relay information:
CW tag number: CJ2139601
CW serial number: 01

Responsible Curtis-Wright representative:
Mark Papke
QA Manager
Curtiss-Wright
4600 East Tech Drive, Cincinnati, OH 45245