The pilot flew the approach incorrectly in reportedly foggy conditions, and the aircraft crashed into the side of the Cumbal Volcano, located near Ipiales, Colombia, at 10:23 in the morning.

The aircraft involved had first flown in 1967 and was previously operated by Transair Sweden, Air Madeira, and Philippine Airlines before being transferred to TAME.

The Cumbal Volcano, which rises to an altitude of 15,626 feet (4,763 m), is located less than 20 miles (17 nmi; 32 km) due west of the airport.

The pilot's decision... to initiate and continue the flight towards Tulcán Airport while below minimum meteorological conditions established in the company's standard operating procedure.

Inadequate navigation and operation of the aircraft by the pilot in command... consistent with entering the holding pattern at the Tulcán NDB with a velocity of 230 knots indicated and with a bank angle of 15 degrees, exceeding the maximum limit of 180 knots stipulated throughout the procedure, and using a bank angle inferior to the recommended 25 to 30 degrees, thereby departing... holding pattern obstacle protection, leading to a collision against the Cumbal Volcano.