Why Do Factory Problems Keep Coming Back Even After Corrective Actions?

A factory faces a recurring machine breakdown.

The maintenance team investigates the issue, replaces a damaged component, and closes the corrective action report.

Problem solved!

Two weeks later, the same machine breaks down again.

Another investigation. Another corrective action. Another report.

But why does the problem keep returning?

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Because fixing a problem and eliminating its root cause are two different things.

Replacing a damaged bearing may restart the machine. But if poor lubrication caused the failure, the same problem will return.

The real lesson:

Before closing any corrective action, ask three questions:

1. Have we identified the actual root cause?
2. Have we eliminated the condition that caused the problem?
3. Have we verified that the corrective action is effective?

Remember: A corrective action is not successful because the report is closed. It is successful when the problem stops recurring.

Discussion: Have you seen factories repeatedly solving the same problem without permanently eliminating it?