Pinkman,
You are asking the wrong question... the question is not "why only RR" but rather "at what point, as the temperature decreases in a given fuel will it also affect other engine/airframe combinations"?
So you are convinced that no other aircraft departing China with Chinese fuel on a long haul sector to Europe or US has ever experienced the range of temperatures that has affected the 777s with TRENT 800 powerplants?
