MH370, which was flying from Kuala Lumpur to Beijing, China, disappeared on March 8, 2014. The Boeing 777 was carrying 239 people when the jet disappeared over the South China Sea. Captain Zaharie Shah last communicated with air traffic control at 1:19am during a routine handover from Malaysian to Vietnamese channels.
Analysis of radar and satellite data shows that it suddenly changed course and flew back across Malaysia before turning south of Penang and then towards the southern Indian Ocean.
Mr Shah has come under fire numerous times over theories he purposely crashed the jet, after his apparent final goodbye gesture.
However, Jean-Marc Garot, Michel Delarche and Jean-Luc Marchand think the evidence points more likely towards a hijacking by someone else on board.
The trio launched a website in 2018 with their theory on the jet’s location, following their research into the possibility an emergency ditching was performed by the pilot only once the plane ran out of fuel.
Their estimations placed the remaining fuselage at specific co-ordinates near Christmas Island in the Southern Indian Ocean.
Mr Delarche wrote in his blog in 2018: “Some experts raise the idea of a pilot-controlled water landing – the plane descending whiile hovering having travelled up to 100 nautical miles beyond the last known position corresponding to the seventh Inmarsat arc.
“In our book ‘The Hijacked MH370’, Mr Garot and I also suggested this hypothesis would explain the small number of debris found.
“It also explains the fact that debris corresponding to moving parts such as the flaperon found in Reunion [Island] had to undergo a low speed tearing and not a violent impact as envisaged by Boeing.
“This is why we have considered the possibility the plane was taken over by someone else on board.
“That said, we did not exclude the idea of the suicidal pilot which remains for us a plausible hypothesis too.”
The idea that the plane came to a controlled stop has been popular among aviation experts, but with the blame being put on Mr Shah.
Civil aviation expert Larry Vance is someone who has backed this theory several times.
In his 2018 book “MH370: Mystery Solved”, he wrote: “The investigation into the disappearance of MH370 is different because MH370 was not an accident.
“MH370 has only one cause – it was caused by an international criminal act – perpetrated by one individual.
“There is no complex sequence of failures like there would be in an accident scenario.
“MH370 can be explained by one single cause – that being the conduct of the pilot.”
In February 2019, Mr Vance admitted that he could not say for certain whether the pilot, Captain Shah, or co-pilot, 1st Officer Fariq Ab Hamid, were the perpetrator.
However, he said the most likely suspect is Captain Shah, who had also ordered two extra hours of fuel before the flight.
He added: “The simplicity of the disappearance of MH370 comes down to this: either it was a criminal act, or it was not.
“The evidence confirms it was a criminal act, committed by one individual who, as a pilot in the plane, had a simple means to carry it out.
“There was nothing to prevent an MH370 pilot from commandeering his own plane and then following the exact sequence of events to take the plane to the bottom of the ocean.
“That is what happened and that is a fact.”