After the No. 3 and No. 4 pylons an

After the No. 3 and No. 4 pylons and engines separated, investigators believed, the crew flew the aircraft under the following conditions:
• The right wing leading edge was severely damaged;
• The right wing leading-edge flaps were partially damaged;
• The right outboard aileron was "floating" at five degrees trailing edge¬up;
• There was limited roll control because no outboard aileron was available, and the spoiler system was only partially available;
• There was limited rudder control because of a lagging of the lower rudder for unknown reasons;
• The right inboard aileron was probably less effective because of disturbed airflow created by the damaged wing leading edge and the loss of the No. 3 pylon; and,
• Engines No. 1 and No. 2 were at high thrust settings.