i can’t find it online, but im reasonably certain i heard an interview with this guy on Canadian public radio several years ago that really shook me. he talked basically about how he wouldn’t fly on a Boeing plane, knowing what he knows and having seen what he’d seen, stuff like quality rejected parts getting taken back into inventory to meet quotas. the takeaway for me was that the quality control system that had previously worked so well was an invention of equal or possibly higher importance to any kind of aerodynamic innovation present on those planes. i work in an analogous role (in a different industry) and i really do take it more seriously after having heard the interview. nobody likes the work of quality assurance and you’ll never see someone doing a non-conformance report on TV but it’s a necessary condition for planes to stay in the sky. RIP to a real one and if he got murdered then i hope the industry burns