ENS 49318

v t e ENS Event
10:46 Sep 3, 2013
Title	Secondary Containment Access Air Lock Doors Opened Simultaneously Resulting in Momentary Degradation
Event Description	During planned maintenance activities, station personnel simultaneously opened the inner and outer airlock doors from unit 2 reactor enclosure to the U2 reactor enclosure HVAC room, resulting in a lowering of reactor enclosure delta pressure to below the tech spec minimum required value. The airlock doors were closed within approximately 5 seconds and reactor enclosure delta pressure recovered to greater than the tech spec minimum required value within approximately 20 seconds. Unit 2 secondary containment was declared inoperable for the time that reactor enclosure delta pressure was below the tech spec minimum required value, and was declared operable when reactor enclosure delta pressure recovered to greater than the tech spec minimum required value. Total Limiting Condition of Operation time was approximately 20 seconds. The licensee has notified the NRC Resident Inspector.

ENS 49318 +/-
Where
Limerick Pennsylvania (NRC Region 1)
Reporting

10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
LER:	05000353/LER-2013-002
Time - Person (Reporting Time:+3.4 h0.142 days <br />0.0202 weeks <br />0.00466 months <br />)
Opened:	Chris Giambrone 14:10 Sep 3, 2013
NRC Officer:	Bill Huffman
Last Updated:	Sep 3, 2013
49318 - NRC Website
v • d • e

v t e Emergency Notification System
Limerick with 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
WEEKMONTHYEAR2014-12-11T14:45:00 [Table view]
[ENS list for Limerick]

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