The Magic Power Company has been experiencing a problem with equipment failures. The company decided to do an analysis of the causes of these failures. Five Failure Modes were noted as occurring at least once. A checksheet was constructed to record the cause of each failure by plant and by manufacturer. The five Failure Modes were as follows (with corresponding symbols to be used on the form for an occurrence):

Now you are asked to create a first Pareto Chart by the five failure modes to tell what failure modes seemed to be the biggest headache that requires the primary focus and immediate action. You will first need to total the number of occurrences (N) for each failure modes then divide each individual cause by (N) to determine the percentage of failure modes.

Construct a second Pareto Chart by the six manufacturers of equipment for the plant failures (without regard to cause) contained in the checksheet.

Construct a third Pareto Chart by the five plants in which the plant failures occur (without regard to cause) contained in the checksheet.

Based on the three Pareto Charts constructed, what do you suggest for further investigation?