Event Notification Report for February 07, 2023

EN Revision Imported Date: 2/7/2023

EN Revision Text: PART 21 REPORT - INTERIM REPORT FOR EATON TRM5 TIMING RELAYS

The following is a summary of information provided by the Curtiss-Wright Nuclear Division via email:

QualTech NP discovered the presence of a programmable logic device (a flash-based CMOS (complementary metal-oxide-semiconductor) microcontroller) in the timing relays that was not previously identified for this family of relays. The only affected facility is Perry Nuclear Plant. This could potentially lead to unevaluated electromagnetic interference or radiofrequency interference issues when installed in the plant.

For questions concerning this potential 10 CFR 21 issue, please contact:
Tim Franchuk
Quality Assurance Director
QualTech NP, Curtiss-Wright Nuclear Division
(513) 528-7900, ext. 176

* * * UPDATE ON 02/06/23 AT 1051 EST FROM MARGIE HOVER TO KERBY SCALES * * *

QualTech NP provided an update identifying other facilities that are affected by the Eaton TMR5 timing relays. The other affected facilities are Calvert Cliffs, Beaver Valley, Diablo Canyon, Arkansas Nuclear One, and Comanche Peak.

Notified R1DO (Cahill), R4DO (Gaddy), R3DO (Szwarc) via phone and the Part 21 group via email.

AGREEMENT STATE REPORT - OVEREXPOSURE TO THE FETUS

The following report was received by the Louisiana Department of Environmental Quality [the Department]:

"On January 31, 2023, University Hospital & Clinics, Inc. notified the Department of a Nuclear Medicine Event. A patient back on October 26, 2022, was being treated with thyroid ablation with isotope I-131 with an activity of 30 mCi. The patient was found out to be pregnant at eleven weeks at the time of treatment. The physicist determined that the fetus received 5 rads."

Louisiana Event Report Number: LA20230001

AGREEMENT STATE REPORT - EXCESSIVE EXPOSURE

The following information was provided by the Louisiana Department of Environmental Quality (LDEQ) via email:

"LDEQ was notified by the Acuren Inspection Radiation Safety Officer (RSO) via the DEQ Radiation Hotline at approximately 1240 EST on February 6, 2023, concerning a possible industrial radiography camera excessive exposure. According to the RSO, at approximately 1025 at the Shell Norco Refinery a possible excessive exposure occurred. Two radiographers did not crank the Ir-192 source completely back in the camera. The first radiographer had his hand close to where the source was located for approximately 10 seconds. The estimated whole-body exposure for both radiographers is 448 mR and the worst-case exposure to the hand for one of the radiographers is 96.86 R. The licensee is currently doing a reenactment to have a better idea of the potential exposures. The licensee is sending the radiographers for a blood count. The camera is a QSA Global 880 Delta (s/n D13733) with 41 curies of Ir-192 (s/n54759)."

LA Event Report ID No.: LA 20230002