I am curious as to what caused the initial upset ( with a climb rate in excess of 7000 fpm) according to flights website. The statemet that the Captain briefed the crew about turbulence ahead is a little ambiguous. Did he mean immediately ahead ? or just a reminder that it was forecast on the flight ? That question is relevent ? Altough they did make an initial turn of 12 degrees just prior to the upset. I guess they were avoiding weather .
Also , could there be a link to this and the QF 330 incident where they unexpectantly had an upset ? Cant recall all the details of that incident , apart from unexpected , climb or desent .