Sorry Seattle Lion, it's not a Quality Assurance problem to fix. Finding the problems after the event has taken place is not the way to fix the problem. Your bad crimp issue is a classic case of a simple tool failure that caused a huge problem for the end user. Bad crimps in a water system or bad connector crimps in an electrical system are nearly impossible to "inspect" after the fact. You found that out and hopefuly Kodiak did so too and learned something. Designing highly capable crimp processes, process control, destructive testing and constant monitoring are the way to control this kind of issue. NASA, The car guys and the medical device industry all know this. The crimper is just the visible part, but there is work that goes into supporting such a tool and process. QA is part of the solution, but inspection is not fix. It can be done at a reasonable cost, but it takes engineering, training and management to achieve.