Experts from the CEO of Aero Consulting Experts and retired pilots said MH370 pilots were believed to be turning back to land at Penang Airport, Malaysia, when the plane caught fire.
Last week former United Airlines captain Ross Aimer claimed the Boeing 777-200 suddenly turned left because of a plane fire.
Aimer suspects the plane turned again to the left or south to the south of the Indian Ocean.
MH370 lost contact for around 40 minutes during his flight from Kuala Lumpur to Beijing on March 8, 2014.
Inmarsat satellite data shows MH370 turning left and flying across Peninsular Malaysia, where investigators claim MH370 turned left again and crashed into the Indian Ocean west of Australia after running out of fuel.
Aimer, who has 40 years of flight experience, believes the possible scenario is a 221-kilogram lithium battery in a burning cargo.
He suspected that a fire killed the flight crew in the air before the Malaysia Airlines plane flew for hours with an automatic pilot on fire.
Aimer, who once flew the Shah of Iran, said MH370 would not be able to land at Penang Airport with an automatic pilot without pilot control.
According to Aimer it was very dangerous if the fire entered the oxygen system, and this was the worst thing that could happen because the crew had no chance.
By itself, without a pilot, the plane cannot land. If the pilot is still alive and they can program the automatic pilot to land at the airport, Aimer said.
A number of theories reveal the Boeing 777 captain, Zahari Ahmad Shah, said goodbye emotionally during his last contact, because this was his hometown before accidentally crashing a plane into the sea.
A year after disappearing, the theory put forward by Simon Hardy, flight pilot and instructor, was supported by David Learmount from Flight Magazine.
“Since Captain Simon Hardy revealed in Flightglobal / Flight International his estimate of where Malaysia Airlines Flight MH370 is likely to stop, the Australian Transportation Security Bureau (ATSB), which leads the MH370 search team, has spoken at length for him,” said David Learmount.
But ATSB failed to find the MH370 aircraft and the Malaysian Ministry of Transportation also said they did not know what had happened to the unfortunate aircraft.