A complaint never costs only the case itself. It costs rework, freight, credit notes, a rush inspection of stock — and a little of the customer’s trust every time. But the most expensive thing about recurring quality defects is what they reveal: that the organisation closes cases instead of removing causes.
The same defect types recur in the complaint statistics quarter after quarter
Corrective actions are typically “employee re-instructed” or “increased inspection”
Defects are discovered at final inspection or at the customer — rarely at the source
CAPA cases are closed on the deadline rather than on verified effect
Under time pressure the case is closed once the symptom is handled. But an error whose cause is still in the process comes back — with a new case number.
More inspection catches more errors but prevents none. Inspection is the most expensive and least reliable quality strategy — mistake-proofing at the source (poka-yoke) is the cheapest and best.
If the work is really done in three different ways, quality is a matter of chance. Without living, trained standards, there is no stable foundation to secure quality on.
Which defect types, which products, which process steps account for the bulk? The Pareto principle almost always applies: a few causes create most cases. Start there.
5 Whys or a fishbone with the people who work in the process — and keep going until the answer points to the system: a missing standard, an unclear specification, a process that allows the error.
The best countermeasure makes the error impossible or instantly visible. And a CAPA is only closed when data over time shows the error is actually gone.
The operations check asks 8 questions and gives a concrete, preliminary diagnosis with a prioritised first step. Free, no sign-up, 4 minutes.