ENS 57481

v t e ENS Event
02:00 Dec 25, 2024
Title	Damaged Safety Instrument
Event Description	The following information was provided by the South Carolina Department of Environmental Control (the Department) via email: At approximately 2100 EST, on December 24, 2024, the licensee's staff noticed a tear in the Mylar window on one of their Thermo-Fisher FC-185 beta gauges, thus causing the system to be shut down. The system was put back into service at approximately 0000 on December 25, 2024. The licensee's radiation safety officer contacted the Department to report the incident at 1502 on December 25, 2024. The Thermo-Fisher Model TFC-185 contains 1250 mCi of Kr-85. The source model number is a Kr85-4, and the serial number is KA-2197. There were no radiation exposures resulting from the service of the gauge. * * UPDATE ON 03/06/2025 AT 0840 FROM ANDREW ROXBURGH TO BILLY NYTKO * * * The licensee submitted its 30-day written report on January 16, 2025. The report indicated that the Mylar window was replaced at 2350 on December 24, 2025. The report also indicated that there were no increased radiation exposures to individuals during the repair. The Department considers this event closed. Notified R1DO(Ford) and NMSS Events (email)

ENS 57481 +/-
Where
Mitsubishi Chemical America, Inc. Greer, South Carolina (NRC Region 1)
License number:	036
Organization:	Sc Dept Of Health & Env Control
Reporting

Agreement State
Time - Person (Reporting Time:+32.35 h1.348 days <br />0.193 weeks <br />0.0443 months <br />)
Opened:	Andrew Roxburgh 10:21 Dec 26, 2024
NRC Officer:	Sam Colvard
Last Updated:	Mar 6, 2025
57481 - NRC Website
v • d • e

v t e Emergency Notification System
Mitsubishi Chemical America, Inc. with Agreement State
WEEKMONTHYEAR2025-02-14T05:00:00 [Table view]
[ENS list for Mitsubishi Chemical America, Inc.]

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