ENS 47953

v t e ENS Event
21:00 May 23, 2012
Title	Crack Identified in Pressurizer Heater
Event Description	During inspections to determine the physical integrity of a failed pressurizer heater it was determined that the heater (number 26) was cracked. Due to the location of the pressurizer heater crack, this is considered a degradation of the RCS Barrier. The initial visual inspection of heater 26 in November of 2011, did not identify the cracking. During efforts to remove the heater, a crack was observed on May 21, 2012. The crack is above and below the heater support plate. The crack is an axial crack showing some branching. The crack is about an inch above and inch below the heater support plate. These inspections were being performed as a result of the operating experience at the Sizewell B reactor in the United Kingdom. The licensee has notified the NRC Resident Inspector.

ENS 47953 +/-
Where
Fort Calhoun Nebraska (NRC Region 4)
Reporting

10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
Time - Person (Reporting Time:+-1.1 h-0.0458 days <br />-0.00655 weeks <br />-0.00151 months <br />)
Opened:	Amy Burkhart 19:54 May 23, 2012
NRC Officer:	Dong Park
Last Updated:	May 23, 2012
47953 - NRC Website
v • d • e

v t e Emergency Notification System
Fort Calhoun with 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded
WEEKMONTHYEAR2015-07-22T18:30:00 [Table view]
[ENS list for Fort Calhoun]

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