ENS 49153

v t e ENS Event
12:49 Jun 28, 2013
Title	Door Interlock Malfunction Resulted in Brief Loss of Secondary Containment
Event Description	At 0749 CDT on June 28, 2013, indication was received in the Control Room that two Secondary Containment doors, in one access opening, were opened simultaneously. The interlock mechanism preventing both doors from operating simultaneously did not operate as expected. This condition represents a failure to meet Surveillance Requirement 3.6.4.1.2. As a result, entry into Technical Specifications 3.6.4.1 Condition A was made due to Secondary Containment being declared inoperable. The doors were secured at 0749 CDT [total time with both doors open was 7 seconds] and Secondary Containment was declared operable. This event is being reported in accordance with 10 CFR 50.72(b)(3)(v)(C) as a condition that could have prevented the fulfillment of a safety function. The NRC Resident Inspector has been notified.

ENS 49153 +/-
Where
Dresden Illinois (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Time - Person (Reporting Time:+1.48 h0.0617 days <br />0.00881 weeks <br />0.00203 months <br />)
Opened:	Matt Kerchensaut 14:18 Jun 28, 2013
NRC Officer:	Bill Huffman
Last Updated:	Jun 28, 2013
49153 - NRC Website
v • d • e

v t e Emergency Notification System
Dresden with 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
WEEKMONTHYEAR2019-01-30T15:10:00 [Table view]
[ENS list for Dresden]

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