Sorry for banging on about this, but the accident report I linked to above is a great example, as it happens. It's about the cargo 747 that stalled shortly after take-off in Bagram, Afghanistan, caught on a spectacular and sobering video.
Cause: cargo was not secured enough and slid back during take-off, shifting centre of gravity, stall, crash. Blame: loadmaster. Done. Or are we?
No: Loadmasters are not FAA-certificated (a gap in the system). The operator procedures were inadequate. FAA oversight over these cargo operations was deficient, one reason being that the FAA inspectors were insufficiently trained. So, suddenly "blame" rests not only with the loadmaster (who perished in the crash, btw), but with the system, the operator, FAA procedures, FAA training, etc.
Cause: cargo was not secured enough and slid back during take-off, shifting centre of gravity, stall, crash. Blame: loadmaster. Done. Or are we?
No: Loadmasters are not FAA-certificated (a gap in the system). The operator procedures were inadequate. FAA oversight over these cargo operations was deficient, one reason being that the FAA inspectors were insufficiently trained. So, suddenly "blame" rests not only with the loadmaster (who perished in the crash, btw), but with the system, the operator, FAA procedures, FAA training, etc.