MH370, which had been travelling from Kuala Lumpur to Beijing, disappeared on March 8, 2014, with 239 people on board. The Boeing 777 aircraft last communicated with air traffic control at 1.19am when the plane was flying over the South China Sea.Minutes later, it completely disappeared from civilian radar screens during a routine handover from Malaysia to Vietnamese radio channels.
Analysis of radar and satellite data shows it suddenly changed course and flew back across Malaysia before turning south of Penang and then towards the southern Indian Ocean.
Many theories have surfaced over the last few years, including the possibility, the pilot went on a suicide mission.
Simon Hardy, a former British airline chief pilot and aviation expert says he can prove Mr Shah flew purposely to avoid action from the military in both Malaysia and Thailand airspace.
In a new documentary with Australia’s 60 Minutes, he revealed his “remarkable discovery”.
Mr Hardy said: “As the aircraft went across Thailand and Malaysia, it ran down the border going in and out of each county.
“Therefore neither would have been bothered by it, ‘oh it’s gone, not our problem’.
“So there’s a reason for his actions, it is deliberate.
“If you asked me to make a Boeing 777 disappear, I would do the same and he did it very well because we know the military did nothing.”
It is not the first an aviation expert has pinned the blame on Mr Shah.
Malaysia Airlines pilot Nike Huzlan suggested his colleague had purposely switched the plane’s transponder off.
He said previously: “Any pilot anywhere in the world knows when you hand it over you switch frequency immediately.
“It’s all done in one movement.
“‘MH370 goodnight’, over to Vietnam, ‘MH370 good morning’, that didn’t happen.”
In 2016, Australian officials also confirmed Mr Shah had practised a route where the plane is said to have vanished using an in-flight simulator he had built at home.
A statement read: “The simulator information shows only the possibility of planning.
“It does not reveal what happened on the night of its disappearance nor where the aircraft is located.
“For the purposes of defining the underwater search area, the relevant facts and analysis most closely match a scenario in which there was no pilot intervening in the latter stages of the flight.”