The National Transportation Safety Board has issued its first report about the fatal plane crash on Interstate 285 earlier this month.

From the NTSB website:

A review of the air traffic control (ATC) transcript revealed that the pilot contacted clearance delivery for an IFR clearance. ATC provided the clearance, which included radar vectors, and “climb and maintain 3,000; expect 8,000 in 10 minutes.” The pilot read back the clearance correctly, and confirmed that he had the most recent automatic terminal information service (ATIS), which was information “Whiskey.” The pilot contacted ground control, and indicated that he was ready to taxi. Ground control instructed the pilot to taxi for runway 3R, via bravo, hold short 3L, and the pilot read back the instructions correctly. The pilot then contacted the tower controller informing them that he was holding short 3L and ready. The tower controller instructed the pilot to “fly heading 360 and cleared for takeoff.” The pilot then questioned the controller regarding which runway to take off from and the controller cleared the pilot for takeoff from runway 3L. Approximately two minutes after departure the tower controller called the pilot to verify heading. The pilot responded “zero-two-victor, I’m having some problem climbing here.” Followed by “zero-two-victor; were going down here at the intersection.” This was the last transmission made by the pilot.

The cause of the crash was not given in this report. A witness reported to the NTSB that the plane was flying very slowly at about 75 to 100 feet overhead before the plane moved out of sight.

All four people on board died in the crash.