ENS 48853

v t e ENS Event
07:45 Mar 27, 2013
Title	Reactor Pressure Boundary Leakage
Event Description	On March 26, 2013, at 1635 [CDT], with Unit 1 shutdown for refueling, leakage was identified from the 2-inch reactor head vent line during a Reactor Pressure Vessel (RPV) pressure test. The leakage was approximately 20 drops per minute. The RPV pressure test was stopped and the reactor vessel depressurized to facilitate examination of the piping and associated flange connections. At 0245 hours0.00284 days <br />0.0681 hours <br />4.050926e-4 weeks <br />9.32225e-5 months <br /> on March 27, 2013, the leak was confirmed to be through-wall originating from a socket weld (i.e., pipe elbow). The cause and resolution are under evaluation. The condition is being reported under 50.72(b)(3)(ii)(A) given the defect was associated with the primary coolant system pressure boundary. The licensee notified the NRC Resident Inspector

ENS 48853 +/-
Where
Quad Cities Illinois (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
LER:	05000254/LER-2013-003
Time - Person (Reporting Time:+-3.4 h-0.142 days <br />-0.0202 weeks <br />-0.00466 months <br />)
Opened:	Drew Griffiths 04:21 Mar 27, 2013
NRC Officer:	Vince Klco
Last Updated:	Mar 27, 2013
48853 - NRC Website
v • d • e

v t e Emergency Notification System
Quad Cities with 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
WEEKMONTHYEAR2014-03-31T18:02:00 [Table view]
[ENS list for Quad Cities]

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