Date & Time: Jul 15, 2009 at 1133 LT
Type of aircraft:
Scheduled Revenue Flight
Tehran - Yerevan
Crew on board:
Pax on board:
Sixteen minutes after take off from Tehran-Imam Khomeiny Airport, while cruising over Qazvin at FL340, aircraft suddenly changed its heading to 270° and then nosed over. It entered a rapid descent, losing 20,000 feet in ninety seconds and eventually crashed in a near vertical angle in an open field. All 168 occupants were killed and aircraft desintegrated on impact.
At a height of 10,300 metres, a stage of the compressor on left engine failed in flight, causing several elements to fail and puncture the engine nacelle. Several hydraulic and fuel lines were cut while all control systems were out of service. A huge fire spread on the left side of the airplane and crew lost its control.