Iai 1125 accident near Fort Lauderdale, Florida, April 24, 2020

The NTSB's narrative final · quoted from the NTSB record

The pilot reported that, during the takeoff roll and at rotation speed, the airplane did not respond when he pulled back on the control yoke. He tried to rotate again, about 130 knots, which was above decision speed. With no response, he performed a rejected takeoff with maximum braking and full reverse thrust. The airplane departed the end of the runway, proceeded through the paved overrun, and into the grass beyond the runway. The nose gear separated, and the right main gear collapsed. The airplane pivoted to the left and came to a stop in the grass, near the perimeter access road. The airframe sustained substantial damage to the fuselage and right wing. The pilot was using takeoff performance data for a flaps 20° takeoff, for which the maximum allowable takeoff weight was 22,000 lbs for the temperature at the time (the reported temperature at the time of the accident was 35° C). The pilot estimated that the airplane weighed about 22,620 lbs; however, he did not weigh the cargo on board and did not compute a center of gravity prior to the accident flight. FAA inspectors weighed the cargo with a calibrated scale after the accident. Given the actual weight of the cargo, the total weight of the airplane was about 24,206 lbs, or 2,206 lbs above the maximum weight for that configuration. Additionally, postaccident examination of the airplane, including an operational check of the elevator and trim, did not reveal evidence of a mechanical malfunction or anomaly. Data download from the digital electronic engine controls also showed that the engines were operating normally and as demanded during the takeoff and accident sequence. Given this information, it is likely that the airplane did not rotate as expected during the accident takeoff because it had been loaded in excess of the weight that was appropriate for the configuration and temperature.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.