[3][4] The crew consisted of 40-year-old Colombian Captain Oscar Chávez and 50-year-old Italian First Officer Renato Marchese.

His flight experience with aircraft of the accident type amounted to 482 hours, which he had completed entirely in the position of first officer.

After landing, the Piper's crew reported that the cloud cover had broken in the conditions of minimal visibility.

To correct this, the first officer started increasing the descent rate and slowing the plane down, almost 20 knots below the normal airspeed.

When the crew started levelling off the aircraft stalled and banked sharply to the left before crashing into a four-apartment building 3,200 meters from the runway threshold at 2:53 P.M. and catching fire.

No effort was made to contact the pilots' previous employers and inquire about their specific deficits.

The NTSB determined that the probable cause of the accident is: The flight crew's mismanagement of the approach and multiple deviations from company SOPs, which placed the airplane in an unsafe situation and led to an unstabilized approach, a descent below MDA without visual contact with the runway environment, and an aerodynamic stall.

Contributing to the accident were Execuflight's casual attitude toward compliance with standards; its inadequate hiring, training, and operational oversight of the flight crew; the company's lack of a formal safety program; and the FAA's insufficient oversight of the company's training program and flight operations.