B757 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Situational Awareness
Inflight Event / Encounter Wake Vortex Encounter
Air Traffic Control Issued New Clearance
Environment - Non Weather Related; Procedure
While descending on the Hiley Three Arrival into MIA to cross OSOGY at FL240 pilot flying had to perform the upset recovery maneuver. Winds were negligible (no wind vector on the FMC map display) and the closest target on TCAS was about 12 miles away. First Officer did an outstanding job correcting an uncommanded 20-25 degree roll and maintained altitude within 100 FT. No deviation occurred. While crossing MILSY at 16;000 FT thinking we were safe due to greater separation; First Officer had to again perform the maneuver but the upset was not as dramatic. We alerted ATC and received an offset. We learned that we were following an Airbus A330. ATC provided altitudes and vectors to further avoid wake turbulence. Flight attendants reported that fortunately everyone was seated during the events and that there were no injuries. The seat belt sign was on. Recommend ATC provide greater separation and differing crossing restrictions to aircraft following the Airbus A330 especially in no wind conditions. Also recommend that our Training Department continue to include the upset recovery maneuver in recurrent training cycles. I would also like to commend First Officer for his superior airmanship and professionalism.
B757 Captain reported two wake vortex encounters that resulted in significant uncommanded roll while in trail of an A330 into MIA.