| Pitfall | What it looks like | What we do instead |
|---|---|---|
| Averaging percentages | A quarter reported as the average of three monthly figures | Collect counts; let the dashboard add them up before dividing |
| Chasing noise | A corrective action for every bad month | Act on signals, repeated causes and anything that reached a customer |
| Totals only | A falling NCR count read as good news | Split by shift, supplier, operation and part every month |
| Moving targets | Targets eased mid-year to turn a line green | Change targets only at management review, with the reason minuted |
| Composite scores | One index made of weighted measures | Show each measure plainly; nobody can act on an index they can't explain |
| Quality owns every number | The quality manager defends production's delivery figure | Measure owners outside quality; quality owns the definitions and the analysis |
| Charts without decisions | The meeting ends with nothing assigned | Every off-target line gets an owner and an action, read back before the meeting closes |
| Cost figure nobody trusts | Finance disputes the COPQ total | Agree elements and rates with finance first; mark estimates |
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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.
Aegis Insights are our own guidance, labeled wherever they appear: how we approach this work, not a requirement of any standard or customer.