What happened
During the takeoff phase, the pilot of the aircraft was alerted to significant wind shear conditions, noting centerfield winds of 270 degrees at 25 knots gusting to 46 knots, alongside northwest boundary winds of 280 degrees at 13 knots. Shortly after departing, the pilot reported that a door had opened and requested permission to return for a landing. During the subsequent left turn, the aircraft descended into the ground.
The pilot was the only person on board the aircraft at the time of the accident and sustained fatal injuries. Post-accident inspections of the airframe found no evidence of mechanical malfunction. While the right-side cargo door securing mechanisms appeared relatively undamaged, subsequent flight testing demonstrated that an open door could remain open during rotation without altering multi-engine climb performance or flight characteristics, though it does produce noise and vibration.
Findings
Investigations into the accident identified several contributing factors related to both environmental conditions and pilot actions. The aircraft encountered unfavorable wind shear and turbulence, with airspeed fluctuations of 10 to 15 knots reported during previous landings in similar jet aircraft.
Official findings also pointed to issues regarding preflight planning and pilot performance, specifically noting that the pilot failed to maintain proper airspeed and became inattentive. These factors contributed to an inadvertent stall and a loss of control during the initial climb.