Iranian investigators have said that the Ukrainian plane which fell near Tehran, was on fire before it fell and that it turned back, but in the meantime the crew did not make any radio calls for help.
Ukraine International Airlines’s Boeing 737-800 aircraft crashed shortly after flying from Imam Khomeini Airport in Tehran yesterday. The plane had 176 passengers who got killed in plane, the majority of deceased were Iranian and Ukrainian citizens.
Investigators said witnesses and another nearby passenger plane told them that the plane was on fire before it fell.
The plane also suffered a heavy explosion after being hit by ground, which was mainly due to the fuel available for a four-hour long flight.
Investigators say that as soon as the aircraft reached a height of 8,000 feet (2400 meters), it disappeared from the radar and the plane’s captain did not send any radio message.
The president of Ukraine says his specialists have arrived in Iran and his priority is to find out the cause of the plane crash.
Three black boxes belonging to the three-year-old plane were also found in the crash, which is being reviewed, while Iranian Minister of State says they will be extradited to Ukraine.
Aircraft specialists are also involved in the investigation into such accidents, so the US National Transport Safety Board (NTSB) has to be involved.