Having found a problem that occurs is processed and identified. The next step is the improvement that might be done as follows:
A. Increase Hydro Test Press: to overcome the problem of insufficient hydro test pressure. With proper handling with problems that occur in production will be obtained is the result to be satisfactory.
2. Use black light Inspection To overcome the problem of black light unused and to increase oil leak problem.

With known clearly that the problem occurs, it will be proper handling steps. Thus the improvement measures will produce the expected reduction.
After the reduction process improvement will be generated as shown in the chart below: