ENS 53183

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v t e ENS Event
19:00 Jan 25, 2018
Title	Potential Deficiency Associated with an Item Relied Upon for Safety
Event Description	During a self initiated review, ISA [Integrated Safety Analysis] Staff performed a preliminary review of the ISA to determine whether or not there was a chemical safety issue concerning the proximity of combustible fuel to the yard tractors/shuttle lifts that UUSA's [Urenco USA] Logistics organization uses to move UF6 [Uranium Hexa Fluoride] cylinders around outside on site. ISA staff determined that the ISA lacked sufficient information regarding the proximity of combustible fuel to the IROFS36c [Item Relied Upon for Safety] controlled yard tractors/shuttle lifts. ISA determined that revisions to one, or more, of the applicable IROFS Boundary Definition Documents was necessary to establish operator actions to ensure that the volumetric fuel limit is not compromised due to the proximity of other fuel sources, therefore UUSA is conservatively making this report. UUSA remains in a safe and stable condition. UUSA Logistics has issued a stop work that prohibits applicable cylinders from traveling where proximity to combustible fuel could occur. 10 CFR 70.50(c)(iii) (A) There was not a material release, no radiological or chemical hazards were present. (B) No exposure occurred (C) A deficiency exists in the ISA in which the limiting of external fuel sources near IROFS36c controlled yard tractors/shuttle lifts was not discussed (D) IROFS36c remains operable and available to perform its safety function. The identified deficiency only affects applicable UF6 cylinders that could be moved in proximity to other fuel sources. UUSA has issued a stop work to adequately address the deficiency. (iv) No external conditions affect this event (v) A stop work was issued to prevent the movement of applicable UF6 cylinders where proximity to other fuel sources could occur (vi) An event did not occur at UUSA. UUSA remains in a safe and stable condition (vii) No emergencies have been, nor will any be declared (viii) No state or other federal agencies will be notified (ix) No press releases are planned. The licensee will be contacting the NRC Region 2 office (Ortiz). * * RETRACTION AT 1048 EST ON 02/15/2018 FROM NORMA WELLS TO JEFF HERRERA * * * UUSA has completed the ISA process for the event in question and has concluded that that while the accident is credible it is highly unlikely, therefore 10 CFR 70.61 performance requirements are being met and IROFS are not required for prevention or mitigation. The reportability criteria in 10 CFR Part 70 Appendix A (b) (1) for a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> report is an event that results in the facility being in a state that was improperly analyzed AND results in a failure to meet the performance requirements of 10 CFR 70.61, because UUSA has shown through the ISA process that the facility meet the 10 CFR 70.61 performance requirements the event does not meet both reportability criteria and therefore does not require a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> report. The Licensee will be notifying the Region II Office (Lopez). Notified the R2DO (Lopez) and NMSS (via email).

ENS 53183 +/- *RETRACTED*
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:+-0.67 h-0.0279 days <br />-0.00399 weeks <br />-9.17766e-4 months <br />)
Opened:	Norma Wells 18:20 Jan 25, 2018
NRC Officer:	Jeff Herrera
Last Updated:	Feb 15, 2018
53183 - NRC Website
v • d • e

v t e Emergency Notification System
Louisiana Energy Services with Part 70 App A (B)(1)
WEEKMONTHYEAR2023-08-08T20:22:00 [Table view]
[ENS list for Louisiana Energy Services]

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