No worries about this reactor coolant system defect; Westinghouse says so, and didn’t even list Vogtle or Diablo Canyon, where Southern Company and PG&E said they were going to install these shields. Nevermind a reactor operator warned us back in January. Westinghouse did list “Beaver Valley Unit 2, Callaway, D.C. Cook Unit 1, Farley Units 1 and 2, and Wolf Creek”.

NRC Event Notification Report for July 29, 2013 Event Number 49217:

POTENTIAL EXISTENCE OF DEFECTS IN SHIELD PASSIVE THERMAL SHUTDOWN SEAL SYSTEM

“The defect being reported concerns an identified inconsistency between the intended design functionality of the SHIELD passive thermal shutdown seal (SDS) and that observed during post-service testing.

“The purpose of the SDS is to reduce current reactor coolant system inventory losses to very small leakage rates for a plant that results in the loss of all reactor coolant pump (RCP) seal cooling. The SDS is a Continue reading →