Problem Solving Root Cause Analysis

Problem Solving Root Cause Analysis-68
–you might uncover that there has been significant operator turnover over the last period.Ask why again and you could learn that a few of your experienced operators retired.This provides concrete next steps for anyone conducting the analysis.

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This type of analysis seeks to expose which deviation from regular procedure, or change, drove the unfavorable event.

This is the type of analysis manufacturing folks typically think of when discussing change analysis. Looking for a deviation from a norm also results in a clear corrective action.

Causal factor analysis requires identifying all of the contributing events that led to the problem.

Avoid the pitfall of focusing on the most obvious, final contributors.

The goal it to prevent it from happening again in the future.

Before you can complete a root cause analysis, you must collect as much data as possible about the events and people involved in the lead up.What if new operators usually had a couple months of training before having that same level of responsibility?Change Analysis is a root cause analysis technique that focuses on a specific problem or problematic event.If it won’t prevent recurrences, there’s likely a causal issue versus a root cause to solve.Identifying the underlying cause of the problem, or root cause, empowers the analyst to identify a solution to the problem.In the non-technical example provided above, a clear solution to the problem would be to replace the latch so the gate closes without needing a brick to hold it closed.With more sophisticated problems, the 5 Whys might not be enough to solve the root of the issue. What happens if you factor in that the plant waited to hire new team members until a week before the experienced operators retired?Furthermore, the root cause needs to be identifiable.If a root cause analysis isn’t turning up a true root cause to the problem, the analyst should consider leveraging another analytical tool to solve the problem.The root cause also needs to be within management’s control to fix.For example, if a change to trade policy resulted in a drop in the only source of a specific material, that is out of management’s control. Finally, in order to be a root cause, the issue needs to have a solution that will prevent recurring issues.


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