Using the full-size mock-up, Dave demonstrates how the team is applying the welds and plates to test sites and gives viewers a sense of the work involved in performing the largest repair to be completed on the reactor. The complexity of this particular repair is great, with its planning and analyses warranting the team’s time and efforts for the past 4+ months. As Mr. Cox explains, the team is approaching this final repair very carefully as they feel they have “one chance to get it right.”