Except it didn't fail. You just looked at the left engine and said what if I fed it mashed potatoes instead of fuel. And then dropped the mic and left the room.
It's more like finding a way to shut down the engine but only if there was a movie in the entertainment system than was longer than 5 hours. You can't exploit it now, and probably never will, but it's a risk that's sitting there that I'm sure you agree should be fixed
