This thread is bordering on the idiotic with the suggestion being floated. J430 you ought to be offerring an apology for suggesting at such an early stage such a rediculous explanation. While it may, and I say MAY, be an explanation, its extremely unlikely, I say again, EXTREMELY, EXTREMELY UNLIKELY. I'm not prejudging the case, but how about a more reasonable scenario which is how many twins come to grief - loss of control following an engine failure. Idiot.