EMB ERJ 190/195 ER/LR
Flight Crew Air Transport Pilot (ATP)
Inflight Event / Encounter Wake Vortex Encounter; Inflight Event / Encounter Loss Of Aircraft Control
Flight Crew Regained Aircraft Control
Procedure; Environment - Non Weather Related
Encountered strong wake turbulence on the DOOBI2 from a B747 descending on the same arrival. Aircraft banked 55 degrees right and pitched nose down. We were cleared to descend via the arrival; therefore; no altitude deviation.
While on the DOOBI 2 RNAV arrival into IAH at FL360; with a clearance to descend via the arrival; in straight and level flight; in smooth air and day VMC conditions we encountered a 1-3 second rumbling sensation and began to remark that we were picking up wake turbulence from the aircraft in front of us. At that point the aircraft rolled at a high rate to the right; to what I recall was about 55 degrees of bank; and pitched down slightly. The Captain (pilot flying) attempted to counter act the rightward roll with left aileron and I remember also helping push the controls left. The autopilot disengaged and I felt the stick shaker activate briefly; I believe the yoke was at one point moved to the full left position; and then aircraft began to return to wings level. With the aircraft once again stable at FL360 we decided to ask for a heading off of the arrival so as not to encounter further wake from the aircraft in front of us and the flight terminated without further incident. After the event I remarked that I had heard an aircraft ask for descent on the arrival before we encountered the wake and I also remember seeing a TCAS target out in front of us 2000 feet above our altitude. In addition; I remember noting after the upset that the winds at the time we encountered the wake we're only about 5 to 6 knots.
ERJ-190 flight crew reported encountering strong wake turbulence at FL360 in trail of a B747 on arrival to IAH; which caused a 55-degree bank.