I know we have a different RR engine here (RB211), but QF74 experienced an uncontained engine failure just a few weeks ago (end of Aug 2010) out of KSFO.
Some pictures here, it is certainly an uncontained failure:
Pictures: Qantas 747 uncontained engine failure-31/08/2010-Washington DC-Flightglobal.com
Coincidence?
Why QF again?