21The Case of the Cracking Rails

The most complicated problems will arise at the most remote locations.

Joe Cooch

21.1Introduction to Case Study

In this chapter, we will look at a very interesting case study concerning a company that had actually solved a problem, but because the company didn’t understand how to perform a structured root cause analysis or analyze existing data, it had no idea the problem had been corrected. In fact, the company continued to make process and design changes that only complicated the situation. This is a case study about a company that makes stainless steel, mild steel, and aluminum over-the-road tanker truck wagons for both the petroleum (gasoline, etc.) and food industries (juices, milks, etc.). The company ...

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