So I was climbing out of KATL in a B748. I set my autopilot to M0.87 and Altitude 35000. Everything was fine but at around 31000 MSL, the plane started shaking violently left and right. The throttle was at 100% yet my airspeed was dropping and the plane started losing altitude.
I disengaged the autopilot and tried to restart autopilot, but it didn’t work. This is where I am now, slowly dropping altitude and unable to gain airspeed despite 100% throttle and still banking left and right. Help?