The TRENT is marketed as a lightweight, .........
I really must strongly disagree once again. Not formula one, not lightweight in the sense you mean. The difference is three spools, the design goal since the sixties being efficiency and compact design at the expense of greater complexity over the two spool turbofan. It has taken Rolls Royce a long time to achieve the weight advantage it presently has but it is in no sense a fragile piece of equipment. Think robust instead. The technical advantages of the three spool design grow with engine size.
From the first T/O on the 380 wing, the 972 started to self destruct,
Give me strength!!
Bearfoil = wrong, dead wrong and completely and totally wrong.
Truth = start by reading the ATSB preliminary report.