Incident
The aircraft was conducting a special flight for oil field exploration. The flight was postponed three times because the three passengers failed to arrive on time. When they finally arrived, they were intoxicated and continued to consume alcohol during the flight.
Passengers
One of the passengers was allowed to take the copilot's seat. During the flight, at an altitude of 100 meters, this passenger touched the control column, causing the aircraft to enter an uncontrolled descent.
Accident
The uncontrolled descent continued until the aircraft impacted the ground, bursting into flames. Two passengers were killed, and four other occupants were injured. The aircraft was destroyed by a post-crash fire.
Probable Cause
Loss of control in-flight after an intoxicated passenger made excessive movement on the control column.