Air traffic control had just cleared a Bahamas-bound Learjet 60 to climb to 37,000 feet. Less than 30 seconds later, its crew radioed that the plane was descending. An independent video reconstruction by Bilawal Sidhu traces the final 78 seconds of the November 1 flight, which crashed in a residential area near Greenacres, Florida.

The jet had left Austin-Bergstrom International Airport in Texas for North Eleuthera Airport in the Bahamas. All nine people aboard died, including seven passengers, Captain Jeffrey Gregory, 55, and co-pilot Nathalia Gadelha Filgueiras, 20.

Sidhu synchronized the aircraft’s recorded flight path with weather radar, air traffic control audio and eyewitness footage. Viewers can follow the jet’s position as they hear Filgueiras describe ice and moderate turbulence. When the crew began encountering precipitation, she requested the climb.

Within seconds of reporting the descent, Filgueiras called mayday. She initially reported a descent rate of 10,000 feet per minute. As the aircraft gained speed, the crew reported an overspeed condition. By one of the final radio calls, the jet was losing roughly 20,000 feet of altitude per minute.

On November 3, National Transportation Safety Board member Tom Chapman said investigators had recovered pieces of the left elevator, a tail surface that helps move the aircraft’s nose up or down. The farthest piece lay 3.8 miles from the crash site. Investigators are still working to determine whether the separation contributed to the loss of control or whether forces during the descent tore the surface away.