Event Description
During a climb, a Boeing 737 experienced an uncommanded roll as the aircraft passed through approximately 29,700 feet. The roll angle became most acute near 29,800 feet, at which point a roll reversal began. The captain successfully recovered control of the aircraft and subsequently diverted to a nearby airport. The remainder of the flight proceeded without further incident.
Weather Conditions
Weather conditions both before and after the event were characterized by clear skies and a smooth ride, with no turbulence reported.
Radar Analysis
Radar data analysis revealed that a DC-10 aircraft, positioned about 10 nautical miles ahead, had climbed through the same area approximately 1 minute and 11 seconds earlier. The DC-10 was at an altitude 600 feet higher than the Boeing 737 at the time of its passage.
No other contributing factors were identified in the available information.