The following event description is based on information currently available. If through subsequent reviews of this event, additional information is identified that is pertinent to this event or alters the information being provided at this time, a follow-up notification will be made via the
ENS or under the reporting requirements of
10 CFR 50.73.
On October 11, 2006, at approximately 12:40 Central Standard Time (CST), engineering personnel performing preplanned in-service examination of the Pressurizer nozzle to safe end welds notified the Control Room that five circumferential indications had been discovered that cannot be found acceptable under ASME Section XI.
Since the indications cannot be found acceptable under ASME Section XI the condition is reportable in accordance with 10 CFR 50.72(b)(3)(ii)(A).
Three indications are located on the surge line, one indication is on the safety nozzle, and one indication is on the relief nozzle. The locations are part of the Reactor Coolant System (RCS) pressure boundary. There is no evidence of RCS pressure boundary leakage.
WCGS is currently shutdown for its 15th refueling outage and is in Mode 6. Weld overlay of the safe ends is an activity scheduled for the current outage.
An investigation of this event will be conducted in accordance with the WCGS corrective action program.
The licensee notified the NRC Resident Inspector.
