When you get an unexplained but similar and almost simultaneous problem to two machines (in this case two perfectly functioning RR engines) logic tells me one has to focus on points in common. Obviously the flt routing but principaly the fuel. I know the AAIB have said the fuel was OK, but was it? I just feel they cleared its suitability rather two quickly. This flt came out of China, where a very important matter is currently taking place. China would not be very happy if the real cause was put down to them. One thing is for sure, if a further incident takes place soon, then it will be a field day for the New York aviation lawyers.