Root Cause Analysis

Not always. But targeted. Find the root cause with 5 Why, where it's needed.

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RCA · 5 Why · Initiative #I-471Analysis

ProblemFiller stops at filling head 4 · 3× in 6 weeks

1Filling head 4 leaks at the seal
2The O-ring is worn
3The O-ring isn't replaced in time
4No fixed check in the CIL round

SustainNew CIL task · Check O-rings→ CIL

Not every problem calls for an extensive analysis, because analysis takes time too. When reporting and fixing isn't enough, you get to the real root cause with the right people and methods such as 5 Why.

How RCA works

Fix it practically first

Not every problem becomes an analysis. Act first.

Dig deeper, deliberately

Depth, working principles and sustainment in one way of working.

To the root cause

5 Why and root cause analysis give structural solutions instead of treating symptoms.

One structure

Everyone works with the same approach.

“Don't analyse everything. Only what really needs solving.”
Root Cause Analysis

What it delivers

Solve it onceA removed root cause prevents recurrence.
Shorter lead timeA structured 5 Why delivers in hours what would otherwise take days.
Knowledge capturedEvery analysis is kept and can be reused by the next team.