ENS 56670

v t e ENS Event
20:22 Aug 8, 2023
Title	Unanalyzed Condition
Event Description	The following information was provided by the licensee via mail: It was determined that the Urenco United States of America (UUSA) safety analysis did not analyze for stacked, criticality safe (CSA) containers when not in an engineered storage array. This potentially results in an inadequate analysis. Urenco USA stores CSA containers in isolation on the floor and spaces them 60 centimeters apart, prior to performing IROFS [Items Relied on For Safety] 58a mass determination and placing a container in an array. However, an analysis has not determined whether dropping a container, or stacking a container, onto another container stored in this way, could result in exceeding the Code of Federal Regulations Title 10 Part 70.61 requirements. Currently, there are no containers stacked in this way. Urenco USA has stopped all work regarding moving the containers in areas affected by accident sequence DS1-9. The plant is in a safe and stable condition.

ENS 56670 +/-
Where
Louisiana Energy Services Eunice, New Mexico (NRC Region 2)
License number:	SNM-2010
Reporting

Part 70 App A (B)(1)
Time - Person (Reporting Time:+20.07 h0.836 days <br />0.119 weeks <br />0.0275 months <br />)
Opened:	Jim Rickman 16:26 Aug 9, 2023
NRC Officer:	John Russell
Last Updated:	Aug 9, 2023
56670 - NRC Website
v • d • e

v t e Emergency Notification System
Louisiana Energy Services with Part 70 App A (B)(1)
WEEKMONTHYEAR2025-07-26T19:48:00 [Table view]
[ENS list for Louisiana Energy Services]

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