Event Notification Report for April 09, 2024
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/08/2024 - 04/09/2024
Fuel Cycle Facility
Event Number: 57061
Facility: Louisiana Energy Services
RX Type:
Comments:
Uranium Enrichment Facility
Gas Centrifuge Facility
Region: 2
City: Eunice State: NM
County: Lea
License #: SNM-2010
Docket: 70-3103
NRC Notified By: David Hurd
HQ OPS Officer: Kerby Scales
Notification Date: 04/02/2024
Notification Time: 02:36 [ET]
Event Date: 04/01/2024
Event Time: 23:45 [MDT]
Last Update Date: 04/04/2024
Emergency Class: Non Emergency
10 CFR Section:
PART 70 APP A (a)(4) - All Safety Items Unavailable
Person (Organization):
Miller, Mark (R2DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Event Text
ITEM RELIED ON FOR SAFETY (IROFS) INOPERABLE
The following information was provided by the licensee via phone and email:
"At approximately 2345 MDT, on 4/1/2024, it was observed that the physical boundary of IROFS10 had been opened while this boundary was being relied upon to perform its safety function. This initial report is being made as a 1-hour notification under Appendix A to 10CFR70 (a)(4). The boundary (an isolation valve) was partially opened inadvertently by contact with adjacent equipment while performing operation of 1003 liquid sampling autoclave. The partially opened valve has been shut, restoring the IROFS10 boundary, and the autoclave has been placed in cooling mode. Out of conservatism, until an extent of condition can be performed, the 1004 autoclave which has a similar design has been taken out of service and placed in cooling mode as well.
"There has been no indication of leakage from any operating liquid sampling autoclave to the environment. The system and plant are in a stable condition."
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
The isolation valve was open less than 30 seconds and there was no exposures to personnel. The licensee will notify the NRC Region.