Event Notification Report for June 21, 2023
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
06/20/2023 - 06/21/2023
EVENT NUMBERS
56586
56586
Fuel Cycle Facility
Event Number: 56586
Facility: Honeywell International, Inc.
Region: 2 State: IL
Unit: [] [] []
RX Type: Uranium Hexafluoride Production
Comments: Uf6 Conversion (Dry Process)
NRC Notified By: Sean Patterson
HQ OPS Officer: Thomas Herrity
Region: 2 State: IL
Unit: [] [] []
RX Type: Uranium Hexafluoride Production
Comments: Uf6 Conversion (Dry Process)
NRC Notified By: Sean Patterson
HQ OPS Officer: Thomas Herrity
Notification Date: 06/22/2023
Notification Time: 14:01 [ET]
Event Date: 06/21/2023
Event Time: 15:30 [CDT]
Last Update Date: 06/22/2023
Notification Time: 14:01 [ET]
Event Date: 06/21/2023
Event Time: 15:30 [CDT]
Last Update Date: 06/22/2023
Emergency Class: Non Emergency
10 CFR Section:
40.60(b)(2) - Safety Equipment Failure
10 CFR Section:
40.60(b)(2) - Safety Equipment Failure
Person (Organization):
Miller, Mark (R2DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Miller, Mark (R2DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
FUEL FACILITY - SAFETY EQUIPMENT FAILED TO FUNCTION
The following information was provided by the licensee via email:
"On the first floor of the Feed Materials Building at approximately 1530 CDT on 06/21/2023 while performing cylinder filling operations, a visual indicator of material was identified and operators initiated mitigating actions in accordance with site operating procedures. It was determined that a remotely operated valve closing mechanism at the number 4 fill spot failed to close a UF6 cylinder valve. The cylinder valve was then closed manually by operations personnel. Based on preliminary observations, the licensee does not believe that regulatory limits were exceeded."
The following information was provided by the licensee via email:
"On the first floor of the Feed Materials Building at approximately 1530 CDT on 06/21/2023 while performing cylinder filling operations, a visual indicator of material was identified and operators initiated mitigating actions in accordance with site operating procedures. It was determined that a remotely operated valve closing mechanism at the number 4 fill spot failed to close a UF6 cylinder valve. The cylinder valve was then closed manually by operations personnel. Based on preliminary observations, the licensee does not believe that regulatory limits were exceeded."