ENS Event | |
|---|---|
04:00 Aug 19, 2024 | |
| Title | Gauge Shutters Found Open Without Command |
| Event Description | The following information was provided by the Tennessee Division of Radiological Health via email:
It was discovered on August 19, 2024, that three (3) fixed gauges had shutters that were open without commands to open from the PLC terminal. The area was unoccupied at the time. The facility radiation safety officer (RSO) did not indicate any physical damage to the devices. The event occurred again on the morning of August 20, 2024. No exposure was noted since the gauges were operating in a normal capacity. The RSO had the shutters closed and took the gauges out of service. The gauges were also locked out to prevent reoccurrence. The gauge manufacturer has been contacted for troubleshooting the occurrence. The available device information is as follows: Manufacturer: Mahlo America, Inc. Model: 11-200933 (source holder) Isotope: Kr-85, 260 mCi (as of March 28, 2019) Source SN#: AN-3035, AN-3036, AN-3037 Corrective actions will be updated with a report within 30 days. Tennessee Event Report Number: TN-24-060 |
| Where | |
|---|---|
| 3M Corporation Clinton, Tennessee (NRC Region 1) | |
| License number: | R-M5003-G29 |
| Organization: | Tennessee Div Of Rad Health |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+38.08 h1.587 days <br />0.227 weeks <br />0.0522 months <br />) | |
| Opened: | Andrew Holcomb 18:05 Aug 20, 2024 |
| NRC Officer: | Josue Ramirez |
| Last Updated: | Aug 20, 2024 |
| 57277 - NRC Website | |
3M Corporation with Agreement State | |
WEEKMONTHYEARENS 572772024-08-19T04:00:00019 August 2024 04:00:00
[Table view]Agreement State Gauge Shutters Found Open Without Command ENS 430432006-11-13T06:00:00013 November 2006 06:00:00 Agreement State Agreement State Report - Lost Po-210 Source 2024-08-19T04:00:00 | |