AirfoilMod - I don't dispute that accidents must occur since I don't manage to read every accident report in the world and I'd be amazed if there aren't some SEI related accidents. But are they really significant in the global scheme of things - that is compared to other accident causes, or for that matter in terms of engine failures causing accidents when they do occur? I'm happy to be convinced, but I've not seen the stats to do so.
G