Not all actions are equally strong. Choose the strongest one that is practical, and say why when you choose a weaker one.
| Strength | Kind of action | Example |
|---|---|---|
| Strongest | Remove the cause: change the design, process or material | Change the fixture so the part can only load one way |
| Strong | Error-proof: make the error impossible or detect it at once | Tool-life counter that stops the machine at the insert-change count |
| Medium | Detect: add or improve a check that catches the defect | Raise the in-process check frequency; add the gauge to calibration recall |
| Weaker | Procedure: change the instruction or the method | Add the change interval to the work instruction |
| Weakest | Train or remind | Brief the shift on the requirement |
Before you close the plan, ask where else the same cause could act: other parts, machines, shifts, sites and suppliers. Extend the action there, or write down why it can't apply. Then update the risk records the change touches: the PFMEA, the control plan and the risk register.
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Clause numbers refer to AS9100D (SAE AS9100 Rev D) unless another document is named. The standards' text is not reproduced here: use your own licensed copy.
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