ENS 48507

v t e ENS Event
15:00 Nov 14, 2012
Title	Loss of Assessment Capability - Gross Failed Fuel Detector
Event Description	This is a non-emergency notification. At approximately 10:00 am on November 14, 2012, it was identified that on June 14, 2012 at 4:04 am, the Gross Failed Fuel Detector was not controlling flow as required and therefore would not be able to perform its function. Further investigation revealed that the monitor has been in and out of service since that time. The last time the monitor was taken out of service was November 2, 2012 at 08:40 am and currently remains out of service. This condition has not impacted the health and safety of the public as this condition is not impacting the operation of the facility. This radiation monitor is necessary for accident assessment and is credited for Emergency Action Level (EAL) classification for an Unusual Event in the Harris Nuclear Plant Emergency Plan. Inability to classify an EAL due to an out of service monitor is considered a loss of accident assessment capability and is reportable per 10 CFR 50.72(b)(3)(xiii) as described in NUREG-1022, Rev. 2. Actions are in place to restore the monitor to functional status. The licensee can obtain chemistry grab samples to determine if there is failed fuel though this is not as responsive. The Gross Failed Fuel Detector is planned for repair on 11/16/2012. The licensee notified the NRC Resident Inspector.

ENS 48507 +/-
Where
Harris North Carolina (NRC Region 2)
Reporting

10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
Time - Person (Reporting Time:+0.72 h0.03 days <br />0.00429 weeks <br />9.86256e-4 months <br />)
Opened:	John Caves 15:43 Nov 14, 2012
NRC Officer:	Mark Abramovitz
Last Updated:	Nov 14, 2012
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v • d • e

v t e Emergency Notification System
Harris with 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
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