See my post 2443. It is only the Trent based on a tiny sample of three engine rollbacks on two flights. No-one knows how many times other power plants have been hit with enough ice to almost (but not quite) cause problems.
Watch this space.
Sooty
Agree
reminds me of the uncommanded thrust reverser problem. A Boeing specified, requirement but at first unique to only some PW models. An AD appropriately addressed the known. Then more data arrived (Airbus, Douglas, RR, GE) and additional ADs addressing the knowns in a specific fashion.
So I'll watch this space
for additional knowns that can be addressed in a specific fashion.
Some may feel that this is guessing at the location of the bullet in the chamber, but then again throwing a design change at something that currently works just adds more bullets.