... there have been at least two, one occurring on August 30, 2010, out of San Francisco, a Trent 700 engine, also on a Qantas aircraft.
Not quite.
It was QF74, a 747/RB211; IPT detached from the shaft, but shed its blades (ripping case open) before reaching burst speed.
The other related case was a T1000 on test bench, early Aug. 2010 IIRC.