ENS 55838

v t e ENS Event
17:00 Apr 11, 2022
Title	Failure of a Component of the Access Control System
Event Description	The following information was provided by the Illinois Emergency Management Agency (the Agency) via email: At 0920 CDT on 4/12/2022, the Corporate Radiation Safety Officer (RSO) at Isomedix Operations, Inc. called to report a failure of the electronic brake on the irradiator vault entrance door located in Libertyville. The failure was discovered by licensee personnel at 1200 CDT on 4/11/2022. The licensee stated that operations were discontinued at this time. Following trouble shooting and diagnosis of the issue, the failure was reported to the Corporate RSO at 1830 CDT that same day. The licensee reinitiated operations after implementing temporary remedial access control measures and completing training of staff on revised procedures. As of 1030 CDT on 4/12/2022, the licensee was advised to cease operation of the affected irradiator until further notice. Agency inspectors were dispatched on 4/12/2022 to perform a reactionary inspection. The event was called into the [NRC Headquarters Operations Officer] as required. No personnel injuries or exposures and no adverse effects on the security system were reported. Item Number: IL220011

ENS 55838 +/-
Where
Isomedix Operations, Inc. Libertyville, Illinois (NRC Region 3)
License number:	IL-01123-02
Organization:	Illinois Emergency Mgmt. Agency
Reporting

Agreement State
Time - Person (Reporting Time:+19.63 h0.818 days <br />0.117 weeks <br />0.0269 months <br />)
Opened:	Zach Mengel 12:38 Apr 12, 2022
NRC Officer:	Lloyd Desotell
Last Updated:	Apr 12, 2022
55838 - NRC Website
v • d • e

v t e Emergency Notification System
Isomedix Operations, Inc. with Agreement State
WEEKMONTHYEAR2025-07-16T05:00:00 [Table view]
[ENS list for Isomedix Operations, Inc.]

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