MOSCOW, October 21. /TASS/. Flight recorders were found at the crash site of a light-engine jet Falcon-50, chief press officer of Moscow’s Vnukovo airport Yelena Krylova told reporters.

In her words, airport’s personnel are giving written testimony. Probably video cameras installed at the Vnukovo airport will help clarify the situation.

Several theories of the incident are being probed, including human factor, equipment malfunction and weather conditions, TV news channel Rossiya-24 reported.

France’s oil giant Total CEO Christophe de Margerie died in the air crash, the company has already confirmed his death.

All the passengers and crew members on board died in the crash.

The takeoff was made from a runway amid a visibility of 350 meters, the airport press service of the airport said earlier. “During taxi the jet collided at 11.57pm Moscow time on Monday (7.57pm GMT) with a snow removal machine of the airport’s service,” the airport said at its website. The driver of the snow removal machine wasn't hurt.

The airliner burnt down to ashes and people were not saved, though search-and-rescue services of the airport were put on alert immediately starting fighting the fire.