If the wings fall off my plane mid flight, I jump out with a parachute, and I land without injury then the "overall system" of plane-plus-parachute-plus-trainin

If the wings fall off my plane mid flight, I jump out with a parachute, and I land without injury then the "overall system" of plane-plus-parachute-plus-training has succeeded. However, the plane component of the system failed, because the wings aren't supposed to fall off.