ENS 48502

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v t e ENS Event
16:00 Nov 12, 2012
Title	Technical Support Center Inoperable Numerous Times Over Previous Three Years Without Proper Reporting
Event Description	This non-emergency event report is being made per 10CFR50.72(a)(1)(ii) which requires reporting events that occurred within three years of the date of discovery. Based on operating experience, Engineering personnel reviewed past maintenance activities involving the Technical Support Center (TSC) ventilation system (VH system) and identified 11 occasions between September 2009 and October 2012 (3 years) where the VH system functions could not have been restored within the required facility activation time. The specific instances have been documented in our corrective action program. If an emergency had been declared during these periods and TSC ERO activation was required, the TSC would have been staffed and activated unless the TSC became uninhabitable due to ambient temperatures, radiological or other conditions. If relocation of the TSC staff was necessary, the Station Emergency Coordinator would relocate the staff to an alternate TSC location. Practices and processes have been revised to improve control of TSC maintenance activities and to improve facility availability going forward. In addition, site reporting guidance has been revised to assure timely reporting of these types of events if required. This event is reportable per 10CFR50.72(b)(3)(xiii) as described in NUREG-1022, Rev. 2, since the maintenance activities affected an emergency response facility. The licensee will be notifying the NRC Resident Inspector and state and local authorities in North Carolina and South Carolina.

ENS 48502 +/-
Where
Catawba South Carolina (NRC Region 2)
Reporting

10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
Time - Person (Reporting Time:+-1.78 h-0.0742 days <br />-0.0106 weeks <br />-0.00244 months <br />)
Opened:	Thomas Garrison 14:13 Nov 12, 2012
NRC Officer:	Howie Crouch
Last Updated:	Nov 12, 2012
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v • d • e

v t e Emergency Notification System
Catawba with 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
WEEKMONTHYEAR		Long Term Habitability of the Technical Support Center Under Accident Dose Analysis Exceeds the Calculated Allowable Values	Loss of Emergency Assessment Capability 2021-07-04T13:11:00 [Table view]
[ENS list for Catawba]

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