Are you a fan of 'Loose Change' Airfoilmod? If you are going to quote me at least do it accurately. I said:
Given that the unexpected fuel/water mix behaviour will be common across all aircraft operating in similar environmental conditions it's quite plausible other aircraft types could be affected.
I did not say:
it is "expected" the fuel problem "will be" common across all other a/c operating in similar environment
My statement is a simple logical conclusion that if we are discovering a new interaction between fuel and water then as all aircraft use fuel (with some water in it) then all aircraft could be affected. There's nothing contentious in that unless you are looking for some sort of conspiracy theory.
As for the Trent/fuel interface issue, the Trent is the only engine under close scrutiny as this is, I remind you, an accident investigation on a Trent powered aircraft. If unusual behaviour is noted in the Trent no doubt subsequent tests will be performed on other engine models, but first you need to know what to test for and that is what the investigation is trying to establish.
Boeing will get round to testing the fuel system just as soon as they can finish building the full scale 777 fuel system inside a large vacuum chamber that can create and sustain temperatures of -73C and lower for a prolonged period at low atmospheric pressure. That sort of kit doesn't get built overnight.
There's no question of bad fuel, just that we don't know as much about good fuel as we thought we did.