ENS 44724

v t e ENS Event
11:00 Dec 16, 2008
Title	Criticality Warning System Disabled
Event Description	At approximately 0600 on 12/16/2008, the horns of the inside Criticality Warning System (CWS) covering the Fuel Manufacturing Operation (FMO) were discovered to be in manual mode. On 12/12/08 at approximately 0700, the horns had been taken out of automatic mode and placed in manual mode as part of system maintenance activities at 0700 and inadvertently remained in this condition until this morning at 0600. According to a preliminary investigation, it appears that following maintenance on 12/12/08, incomplete system restoration left the automatic horn function disabled but the detection system remained operational. Once identified, the system was immediately restored to the automatic mode and the inside FMO CWS system was returned to normal operation. Follow-up tests have confirmed that the warning system horns are fully operational. The event is being reported within 24-hours pursuant to 10CFR70.50(b)(2) as an event in which safety equipment was disabled. During the time that the warning system was disabled, there were no conditions that would have resulted in warning system activation. Corrective actions have been taken to prevent re-occurrence. The licensee will be notifying NRC Region 2 as well as State and local governments.

ENS 44724 +/-
Where
Global Nuclear Fuel - Americas Wilmington, North Carolina (NRC Region 2)
License number:	Snm-1097
Reporting

10 CFR 70.50(b)(2)
Time - Person (Reporting Time:+5.38 h0.224 days <br />0.032 weeks <br />0.00737 months <br />)
Opened:	Scott Murray 16:23 Dec 16, 2008
NRC Officer:	Howie Crouch
Last Updated:	Dec 16, 2008
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v • d • e

v t e Emergency Notification System
Global Nuclear Fuel with 10 CFR 70.50(b)(2)
WEEKMONTHYEAR2014-01-22T18:15:00 [Table view]
[ENS list for Global Nuclear Fuel]

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