New drone footage shows the National Transportation Safety Board excavating the impact site of the Learjet 60 that crashed in Palm Beach County, Florida, on November 1, killing all nine people aboard. The video lets viewers compare the crater before and during the dig. With the water drained, crews can be seen sifting through the soil for wreckage, and in one moment two workers appear to carry out a larger piece. The jet had left Austin, Texas, and was headed to North Eleuthera in the Bahamas when it came down in a residential area near Greenacres.

The NTSB said excavation began late on Wednesday, November 4, and investigators have already recovered a portion of one engine. Debris has also turned up away from the crater, including on the roofs of nearby homes and buildings, and the agency has asked residents to report anything they find. Earlier in the investigation, most of the jet's left elevator was found between 1.3 and 3.8 miles from the crash site, which has led to questions about whether parts came off before impact. The NTSB has not given a cause, and investigators have also gathered dashcam footage to help reconstruct the final moments of the flight. For now, the big questions are what pulled the aircraft out of the sky, what the recovered pieces will show, and how long it will take to find out.