Event Notification Report for February 03, 2025

EN Revision Imported Date: 2/3/2025

EN Revision Text: PART 21 INTERIM REPORT - POTENTIAL DEFECT WITH CIRCUIT BOARD

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

The licensee received two alarms due to direct current (DC) output voltage fluctuating between 127.4 to 131.3 volts. After troubleshooting, the DC output voltage fluctuations were caused by the battery charger printed circuit board. The part has been sent to the vendor, Ametek, for evaluation. Catawba is the only plant known to have this issue at this time.

The evaluation is expected to be completed on January 31, 2025.

Catawba condition report number: 02526388

Ametek Part Number: 80-921-4031-90
Ametek failure analysis number: 24-006

* * * UPDATE ON 01/31/25 AT 1548 EST FROM ETHAN SALSBURY TO KAREN COTTON * * *

Ametek is continuing its evaluation of the circuit boards. The original evaluation completion date was January 31, 2025. Ametek is extending the evaluation completion date to February 28, 2025. Remaining steps include completing the cause analysis, identifying all affected equipment, finalizing any corrective action measures, and determining actions required.

Notified R2DO (Suggs), Part 21 Group (email)

AGREEMENT STATE REPORT - STUCK OPEN SHUTTER

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

"On January 24, 2025, the Department was notified by the licensee that on January 23, 2025, the shutter on two Vega model SH-F2B gauges were found stuck in the open position during routine testing. Both gauges contain a 200 millicurie (original activity) cesium-137 source. The licensee reported there is no risk of additional radiation exposure to members of the general public or radiation workers due to this mechanism failure. The licensee is in the process of scheduling a source holder service contractor to evaluate and attempt repairs to the source holders. Additional information will be provided as it is received in accordance with SA-300."

Texas Incident Number: I-10157
Texas NMED Number: TX250004

AGREEMENT STATE REPORT - STUCK OPEN SHUTTER

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

"On January 24, 2025, the Department was notified by the licensee that on January 23, 2025, the shutters on two Vega model SH-F2B, and one Vega model SH-F2 gauges failed in the open position during routine testing. Both SH-F2B gauges contain a 300 millicurie (original activity) cesium-137 source. The Vega SH-F2 gauge contains a 3 millicurie (original activity) cesium-137 source. The licensee reported there is no risk of additional radiation exposure to members of the general public or radiation workers due to this mechanism failure. The licensee is in the process of scheduling a source holder service contractor to evaluate and attempt repairs to the source holders. Additional information will be provided as it is received in accordance with SA-300."

Texas Incident Number: I-10158
Texas NMED Number: TX250005

AGREEMENT STATE REPORT - STUCK OPEN SHUTTER

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

"On January 24, 2025, the Department was notified by the licensee that on January 24, 2025, the shutter on a Vega model SH-F2 gauge failed in the open position during routine testing. The gauge contains a 500 millicurie (original activity) cesium-137 source. The licensee reported there is no risk of additional radiation exposure to members of the general public or radiation workers due to this mechanism failure. The licensee is in the process of scheduling a source holder service contractor to evaluate and attempt repairs to the source holders. Additional information will be provided as it is received in accordance with SA-300."

Texas Incident Number: I-10159
Texas NMED Number: TX250006

MEDICAL EVENT

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

On January 24, 2025, at approximately 1000 MST, a 33.9 mCi Tc-99 cardiac stress test was administered to the wrong individual. The radiation safety officer reported that the effective dose equivalent and risk of functional damage to the patient were still being determined.

The patient has been notified. This incident is under investigation.

* * * RETRACTION ON 01/24/25 AT 2004 EST FROM MICHAEL HART TO JOSUE RAMIREZ * * *

After further investigation, the radiation safety officer determined that this incident did not meet reportability criteria.

Notified R4DO (Deese), NMSS (Allen), and NMSS Events Notification (email).

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 - LOST THEN FOUND RADIOACTIVE MATERIAL SHIPMENT

The following information was provided by the New Jersey Department of Environmental Protection via email:

"Advanced Accelerator Applications (AAA) in Millburn, New Jersey, reported that a shipment of Lu-177 radiopharmaceutical was lost and subsequently recovered en route to another AAA facility in Indianapolis. The package was found on the side of the road near the Pittsburgh airport. A common carrier driver noticed it and called the police, who then called a local hazmat team to make sure it was safe. The hazmat team subsequently called the Chemical Transportation Emergency Center (CHEMTREC), who proceeded to give it to another common carrier at the Pittsburgh airport because they thought they were the courier by mistake. CHEMTREC notified AAA, who confirmed the package as their own, and sent one of their couriers to retrieve it. The courier returned the shipment back to AAA's facility in Millburn."

The activity of the Lu-177 was not provided in the initial report, but it was identified as being less than IAEA category 2.

New Jersey Incident Number: C933984

SHUTDOWN REQUIRED BY TECHNICAL SPECIFICATIONS

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

"On 1/31/2025, at 2015 EST, a technical specification required shutdown was initiated at Hope Creek Unit 1. Technical Specification 3.8.1.1.e. 'AC sources - operating' was entered on 1/31/2025, at 0735 EST, with a required action to restore at least one of the inoperable diesel generators to operable status within 2 hours. This required action was not completed within the allowed outage time; therefore a technical specification required shutdown was initiated, and this event is being reported as a four-hour, non-emergency notification per 10CFR50.72(b)(2)(i).

"On 1/31/2025, at 2121 EST, one of the inoperable diesel generators was restored to operable prior to the Technical Specification 3.8.1.1.e required time to be in hot shutdown. The Unit 1 shutdown was suspended at that time. Technical Specification 3.8.1.1.b remains active for one diesel inoperable.

"There was never an impact on the health and safety of the public or plant personnel.

"The NRC Resident Inspector has been notified."

EN Revision Imported Date: 2/4/2025

EN Revision Text: AGREEMENT STATE REPORT - DAMAGED PORTABLE GAUGE

The following information was provided by the South Carolina Department of Environmental Services (the Department) via phone and email:

"The licensee informed the Department on January 3, 2025, a portable moisture density device was hit by a piece of construction equipment which caused the device to be disabled or fail to function as designed. The licensee reported that the source rod was broken, but was found by performing a survey of the area. The licensee reported that the source rod was shielded back in the portable moisture density device, packaged, and transported back to the licensee's facility to await disposal. The licensee reported that no other damage to the portable moisture density device was observed. The portable moisture density device is a Humboldt 5001 gauging device (serial number 3521) housing approximately 10 millicuries of cesium-137 and 40 millicuries of americium-241:beryllium. The licensee did not report any overexposures. The licensee did not call the Department on January 3, 2025. The Department was made aware of the event on January 6, 2025. This event is under investigation by the Department."

South Carolina Event Number: TBD


* * * UPDATE ON 2/3/25 AT 0907 EST FROM ADAM GAUSE TO JOSUE RAMIREZ * * *

The following information was provided by the South Carolina Department of Environmental Services (the Department) via email:

"An on-site investigation was performed on January 6, 2025, at the licensee's facility. The licensee's representatives account of the event was consistent with the initial report. A 30-day written report was received on January 29, 2025. Details of the 30-day written report were consistent with the details obtained from the licensee during the on-site visit and interviews. A leak test record of the portable moisture density device (serial number 3521) dated January 17, 2025, indicated the leak test results of less than 0.005 microcuries. The portable moisture density device (serial number 3521) was transferred to the manufacturer for repair or disposal on January 17, 2025. As a result of this event the licensee will review emergency and operating procedures with all portable moisture density device users. This event is considered closed."

South Carolina Event Number: SC250001

Notified R1DO (Young) and NMSS Events Notification (email).

OFFSITE NOTIFICATION

The following information was provided by American Centrifuge Operating, LLC via phone and email:

"An 80 kW Mobile Permit-By-Rule emergency generator with equipment number XQ80 (serial number ME0099) and an emissions number of P540 is expected to exceed the rolling twelve-month threshold of 500 hours by roughly 245 hours. This exceedance is being reported per Ohio Administrative Code, Rule 3745-31-30 [to the Ohio Environmental Protection Agency]."