Accident
While preparing for a flight at Tehran-Mehrabad Airport, the copilot conducted a walk-around inspection of the aircraft. The outside air temperature was near freezing, and light snow showers were present. The copilot requested deicing, but several aircraft were already waiting for the service. The captain decided to proceed with takeoff without deicing.
At 0731 local time, the crew received takeoff clearance and began the takeoff procedure. After liftoff, the aircraft began to roll left, then right. Losing altitude, the left wing struck the ground, and the aircraft crash landed. The aircraft came to rest and burst into flames.
Aftermath
All 113 occupants were rescued. Eleven individuals sustained serious injuries, including four crew members.
Probable Cause
Official findings determined that the accident was the consequence of an aerodynamic stall after lift off due to a loss of lift because the wings were contaminated and that the aircraft had not been deiced prior to takeoff. The following contributing factors were identified: poor crew resource management, poor flight preparation, and lack of knowledge about winter operations on the part of the operator.