FORT CALHOUN

Results of a thermal fatigue analysis on the Chemical and Volume Control System (CVCS) charging line concluded that the socket weld fittings above the RCS piping cannot be qualified.

As an interim action, shut down cooling purification has been secured and charging has been isolated to the RCS.

The plant is shutdown and in Mode 5 with the reactor vessel head removed, so RCS is not intact and not required to be for current plant conditions.
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