Accident
On approach to Baguio-Loakan Airport, the crew encountered poor weather conditions characterized by a low ceiling, thunderstorm activity, and heavy rainfall. In low visibility, the aircraft struck the slope of Mount Ugo, which has an elevation of 2,100 meters. The mountain is located 19 kilometers southeast of the airport. The wreckage was discovered 80 meters below the summit, near the Ambuklao Dam. All 50 occupants were killed.
Investigation
The official investigation determined the probable cause of the accident to be controlled flight into terrain. No other causal factors were stated.