Apply Five Whys with evidence checks so each why stays tied to the actual aerospace manufacturing process.
Satellite-panel inserts failed pull test; the first room theory is that the operator skipped the cure timer. Each why must be evidence-based and should move toward a changeable process condition. The common trap is filling the chain with guesses about people because that feels faster than going to the process. A Five Whys chain that ends at rushed, careless, or forgot has usually stopped before the controllable condition. Before Why did inserts fail? Operator skipped cure. Why? Operator was distracted. Why? Training was weak. After Why did inserts fail? Wrong adhesive kit was staged. Why? The pick list did not…
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