ENS 41258

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v t e ENS Event
21:12 Dec 13, 2004
Title	Criticality Monitoring Dosimeters Not Configured Correctly
Event Description	On December 13, 2004, in preparations for new fuel receipt inspection activities, it was determined that the Electronic Dosimeters (Eds) that were previously used to meet criticality monitoring requirements of 10 CFR 70.24, were not configured correctly. Specifically, the dose rate alarm function of the Eds had been disabled. It is unknown at this time if the Eds had previously been used in this in-correct configuration during two previous new fuel receipt inspection activities. Based on the potential that the requirements of part 70.24 were not met, this event is being reported pursuant of part 70.50(b)(2), 'An event in which equipment is disabled or fails to function as designed.' The Electronic Dosimeters were immediately re-configured correctly and new fuel receipt inspection activities will recommence. The licensee notified the NRC Resident Inspector. * * RETRACTION ON 01/05/05 AT 1039 EST BY ROBERT URRELL TAKEN BY MACKINNON * * * The licensee performed an analysis that concluded that a monitoring system capable of detecting a criticality per 10 CFR 70.24 (a)(2) was in place during new fuel receipt. Specifically, the analysis demonstrated that the electronic dosimeters worn by the radiological workers involved adequately monitored for a criticality event." Therefore the licensee retracts the above event notification. R3DO (Sonia Burgess) & NMSS (Linda Gersey) notified. The NRC Resident Inspector was notified of this retraction by the licensee.

ENS 41258 +/- *RETRACTED*
Where
Duane Arnold Iowa (NRC Region 3)
Reporting

10 CFR 70.50(b)(2)
Time - Person (Reporting Time:+17.72 h0.738 days <br />0.105 weeks <br />0.0243 months <br />)
Opened:	Bob Urrell 14:55 Dec 14, 2004
NRC Officer:	Mike Ripley
Last Updated:	Jan 5, 2005
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v • d • e

v t e Emergency Notification System
Duane Arnold with 10 CFR 70.50(b)(2)
WEEKMONTHYEAR2004-12-13T21:12:00 [Table view]
[ENS list for Duane Arnold]

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