ENS 48151

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v t e ENS Event
15:09 Aug 2, 2012
Title	Discovery of After-The-Fact Emergency Condition (Unusual Event)
Event Description	This is a one-hour report for the discovery of a condition which met the Emergency Plan criteria for an emergency action level (EAL) declaration of an Unusual Event (UE). At 0320 hours0.0037 days <br />0.0889 hours <br />5.291005e-4 weeks <br />1.2176e-4 months <br /> on August 2, 2012, a flame was observed coming from a hydrogen vent pipe on the Turbine Building roof. At 0519 hours0.00601 days <br />0.144 hours <br />8.581349e-4 weeks <br />1.974795e-4 months <br /> the hydrogen supply from the hydrogen storage facility was secured and the flame was extinguished. At 1109 hours0.0128 days <br />0.308 hours <br />0.00183 weeks <br />4.219745e-4 months <br />, a detailed review of the event determined that the emergency plan criteria for declaration of an Unusual Event existed due to a flame greater than 15 minutes in the Protected Area. This report is being provided within one hour of the discovery of the undeclared event. As discussed in NUREG 1022, Revision 2, an actual declaration of an Unusual Event is not necessary. The basis for the emergency classification no longer existed at the time of discovery. The safety significance of this event is minimal. There was no known damage to plant equipment and no adverse effect to any plant safety systems. This event had no impact on the health and safety of the public. The NRC Senior Resident Inspector has been notified, as well as the State and local governments.

ENS 48151 +/-
Where
Brunswick North Carolina (NRC Region 2)
Reporting
Emergency class:	Unusual Event
Other Unspec Reqmnt
Time - Person (Reporting Time:+-3.02 h-0.126 days <br />-0.018 weeks <br />-0.00414 months <br />)
Opened:	Lee Grzeck 12:08 Aug 2, 2012
NRC Officer:	Dong Park
Last Updated:	Aug 2, 2012
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v • d • e

v t e Emergency Notification System
Brunswick with Other Unspec Reqmnt
WEEKMONTHYEAR2012-08-02T15:09:00 [Table view]
[ENS list for Brunswick]

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