Event Notification Report for June 06, 2023

EN Revision Imported Date: 6/6/2023

EN Revision Text: EMERGENCY EXHAUST INOPERABLE

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

"At 1127 CDT on 5/16/2023, during the reperformance of test procedure 'STS PE-006, Charcoal Adsorber In-Place Leak Test' due to a failure from the previous day, both trains of emergency exhaust were rendered inoperable due to incorrect performance of the procedure. Performers incorrectly de-energized the humidity control heating coil for the unit not under test, rendering it inoperable. This issue was identified and rectified at 1138 CDT on 5/16/2023, exiting the LCO [limiting condition of operation] for both trains inoperable at that time. There was no impact to the health and safety of the public."

* * * RETRACTION ON 6/5/2023 AT 1132 EDT FROM JASON KNUST TO HOWIE CROUCH * * *

"The initial failure of the STS PE-006 test was caused by a malfunction of the test equipment which initially injected excessive amounts of tracer gas and caused saturation of the charcoal. Using test equipment sourced from Callaway, and following guidance from the vendor, STS PE-006 test was successfully passed on 5/17/2023. No maintenance or intrusive testing was performed on the unit between initial test failure and satisfactory completion of the test. Because this train of emergency exhaust was not actually inoperable at the time the second train was rendered inoperable due to incorrect procedure performance, there was no loss of safety function. Therefore, this event notification is being retracted."

The licensee has notified the NRC Resident Inspector. Notified R4DO (Gepford).

FITNESS-FOR-DUTY REPORT

The following information was provided by the licensee via email:

"On June 2, 2023, a blind specimen provided to a laboratory did not analyze as expected. The specimen reported a false negative for amphetamines and a false positive for opiates.

"This event is being reported pursuant to 10 CFR 26.719(c)(2) and 10 CFR 26.719(c)(3).

"The NRC Resident Inspector has been notified."

EN Revision Imported Date: 6/7/2023

EN Revision Text: PART 21 - RELAY CARD POTENTIAL DEFECT

The following information summary was provided by the licensee via email:

On April 5th, 2023, Duke Catawba Nuclear Station informed Paragon of a failure of a Trane External Auto/Stop and Emergency Stop relay card (Part Number: X13650728-06) in a chiller control system. Analysis of the failed relay card identified minor delamination and water intrusion of the microcontroller chip. Ongoing evaluation is expected to be completed by 7/15/23.

Potential plants affected: Nine Mile Point, Catawba, River Bend, McGuire.

OFFSITE NOTIFICATION

The following information was provided by the licensee via email:

"At 1823 EDT, the shift manager was notified that one siren, part of the public notification system (siren number 10), spuriously activated for approximately one minute. Monroe County agencies were notified regarding the actuation. The cause of the actuation is being investigated and the ability for the siren to actuate has been removed until the cause is determined. There is no impact to the emergency planning zone.

"This event is a four-hour, non-emergency report for notification to other government agencies in accordance with 10 CFR 50.72(b)(2)(xi)."

AGREEMENT STATE - DAMAGED TROXLER GAUGE

The following information was provided by the Florida Department of Health Bureau of Radiation Control (BRC) via email:

"Universal Engineering Sciences Corporate Radiation Safety Officer (RSO) called the BRC Orlando [office] this morning to report one of their Troxler gauges was run over on a job site this morning. He stated the source rod was in the retracted and shielded position at the time of the accident. Unit apparently sustained housing damage. Local RSO was enroute with a radiation meter. A BRC inspector is also enroute."

The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:

The Troxler gauge involved contains nominal activity of 40 mCi of Am-241:Be and 8 mCi of Cs-137.

FL incident number: FL23-081

AGREEMENT STATE REPORT - MEDICAL EVENT - INCORRECT TARGET ORGAN

The following information was provided by the Florida Department of Health Bureau of Radiation Control (BRC) via email:

"The Radiation Safety Officer (RSO) for Santa Rosa Medical Center, called the BRC to report an incident which occurred on Sunday 5/28/23. A technician was performing a lung scan on a patient and accidentally grabbed the wrong dose. The patient received 4 mCi of Tc-99 before the technician realized her mistake; whole dose would have been 10 mCi. The radiologist and the patient were both made aware of the incident.

"Licensing and technology is being asked to further investigate this incident."

The following additional information was obtained from the RSO:

The prescribed dose was 10 mCi of Tc-99 tagged for lung scan while the administered dose of Tc-99 was tagged for the liver. The total body effective dose equivalent to the patient was 80 mrem.

Florida Incident Number: FL23-082

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 - MATERIAL IDENTIFIED IN INVENTORY NOT ON LICENSE

The following report was received by the Florida Bureau of Radiation Control (BRC):

"FSU [Florida State University] contacted BRC Radioactive Materials Licensing via written letter dated May 18th, 2023 regarding a request to add [Uranium] U-233, any form except aerosols, to their license #0032-10. BRC Tallahassee called BRC Orlando this morning at 0900 [EDT] to notify. During a recent inventory close-out process, they found approximately 1.71 mCi of U-233. After checking the U-233 against their license, it was noticed that the U-233 is currently not listed on their current license. After additional review of archival records, it was found that the listing of U-233 was a remnant of their license #0032-18. License #0032-18 was terminated in 2012. The material has not been used in decades. The U-233 will stay in their radioactive materials storage vault and will not be used for any research. The plan moving forward is to eventually transfer the U-233 to a new research laboratory at the Colorado School of Mines. An amendment to current license to add U-233 is needed for this transfer."

Florida Event Number: FL23-080

OFFSITE NOTIFICATION DUE TO ON-SITE FATALITY

The following information was provided by the licensee via email:

"At 0937 EDT on June 6, 2023, it was discovered that a site employee suffered a non-work-related fatality. The individual was found non-responsive outside the Radiological Controlled Area. This is a four-hour, non-emergency notification for which a notification to other government agencies has been made. This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi). The NRC Region I inspector has been notified."