Admitting, I'm not too much involved in that maintenance stuff. I wonder how major airlines could get affected by this crime. It should be easy to track all their parts sources and their financial états for parts to determine the technical quality. And if a company buys several worn out widebodies does nobody check if the same company suddenly appears with like 80000 "airworthy" parts for sale on the market? Who could buy that crap officially and who installs it "without knowing"?