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Event Notification Report for January 09, 2023

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
01/08/2023 - 01/09/2023

EVENT NUMBERS
56306
Agreement State
Event Number: 56306
Rep Org: Alabama Radiation Control
Licensee: 3M Company
Region: 1
City: Decatur   State: AL
County:
License #: 148
Agreement: Y
Docket:
NRC Notified By: Cason Coan
HQ OPS Officer: Adam Koziol
Notification Date: 01/11/2023
Notification Time: 12:53 [ET]
Event Date: 01/09/2023
Event Time: 00:00 [CST]
Last Update Date: 01/11/2023
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
Jackson, Don (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Event Text
AGREEMENT STATE REPORT - STUCK SHUTTER

The following information was provided by Alabama Radiation Control (the Agency) via email:

"Licensee reported that a Honeywell model 4202 beta gauge serial number AE1345 was found with shutter stuck in the safe/closed position during routine shutter checks. The gauge's source, an Eckert and Ziegler model PHC.C2, is promethium-147 with 210 millicuries of activity as of 1/9/2023. The maximum exposure rate at 12 inches from the gauge was reported to be 0.03 mR/hr, less exposure than at installation. The licensee reported that no personnel received radiation exposures over background, due to the shutter's position and that the area around the gauge is unoccupied.

"Reported to the Agency 1/10/23.

"Alabama Radiation Control will provide more information as the investigation continues."