Incident Overview
During the final approach to Medan-Polonia Airport, the flight crew faced adverse weather conditions including thunderstorm activity, turbulence, and heavy rainfall. The aircraft became unstable on the approach and began to lose altitude.
Sequence of Events
As the aircraft descended, the pilot increased engine power. Shortly thereafter, the aircraft struck a television antenna. Following the collision, the aircraft stalled and subsequently crashed into a field, bursting into flames upon impact.
Casualties
Among the occupants, 23 were killed and 22 were injured.
Probable Cause
The official investigation determined the probable cause to be loss of control on final approach, likely resulting from windshear and microburst.