Can't help but wonder what sort of damage/stress that did to the main wing spar...
I'm surprised that incandescent heat extended that far forward.
My guess is that the huge composite fan came apart...
FWIW, there are a surprising number of examples of the right engines on 777s coming apart or catching fire. One was on another flight that made it into Honolulu...
TXnMA
You know, I'd hate to see what happens when the wrong engine on the 777 comes apart or catches fire...