The Six Sigma project team assessed the root cause of the leak rate, finding numerous issues with the expander and the auto-brazer that created a bottleneck at the test and repair stations. The team applied the DMAIC methodology (define, measure, analyze, improve, control) to improve the process. ADP installed improved automatic back plates on the expander and implemented a weekly scorecard for the auto-brazer operator. It also modified the auto-brazer settings based on analysis from the Six Sigma team. The company started using visual leak cues at the auto-brazer to diagnose problems, and revised work instructions for both operations. Beyond reducing the leak rate, the changes reduced scrap, generated cost savings, increased line output, and expanded yearly revenue. ADP enhanced its performance monitoring systems to ensure continuous improvement.