The aviation community is convinced that MH370 might never be found and that human intervention is to blame for the doomed flight’s disappearance, according to an industry insider.

The revelations come as a journalist responsible for uncovering a highly publicised piece of evidence partially withdrew his findings about MH370’s pilot, following further flight simulator examination.

Malaysia Airlines flight 370 was on its way from Kuala Lumpur to Beijing when it went missing on March 8, 2014 along with 239 passengers and crew. All are presumed dead.

But we may never know who is to blame.

Aviation operations professional Neil Hansford told The New Daily that his reading of industry opinion on MH370 was that human intervention led to its disappearance.

“There is not a whole lot of doubt around that MH370 is in the Indian Ocean, in that approximate area and that it is likely to have been a human induced event, not mechanical failure,” Mr Hansford said.

“But without the black boxes and all the normal investigation results you require, no one will ever know.”

He said the massive amount of fuel MH370 pilot Zaharie Ahmad Shah had loaded onto the aircraft was telling.

“In most well run companies he would have noted the amount of fuel he wanted. Somebody in operations should have then asked ‘Why are you carrying that much fuel?’”

Malaysia’s Department of Civil Aviation declared MH370’s disappearance an accident in January 2015.

“At this juncture, there is no evidence to substantiate any speculations as to the cause of the accident,” department director-general Azharuddin Abdul Rahman said.

The Australian-led multi-million-dollar Indian Ocean search effort will conclude in December unless new evidence is found.

Explosion theory and mystery woman

Mr Hansford’s claims come as The Sun reported new debris found in Mozambique suggested MH370 exploded.

The theory goes that the reported piece of the plane is so badly damaged that it suggests the aircraft exploded.

Earlier pieces of debris that have washed up were not as badly damaged.

On Wednesday (AEST), News Corp revealed Mr Shah had grown close to a married woman and her three children. The friendship cooled in the weeks leading up to the doomed flight, the woman said.

Mr Shah is also married with three children.

The pair had messaged each other about a “personal matter” just two days before the flight, but the woman – Fatima Pardi – would not reveal any details.

“That last conversation was just between me and him. I don’t want to talk about it,” Ms Pardi told News Corp. “I’m afraid what I say will be misunderstood … It was a personal matter, a private issue.”

Ms Pardi has been interviewed four times by MH370 investigators, according to the report.

Mr Shah had assumed an “almost fatherly” role over Ms Pardi’s three young children, one of whom lived with cerebral palsy.

‘My assumption seems ill supported’

After re-examining complex data from a leaked FBI report about Mr Shah’s in-home flight simulator, a science and tech journalist claims the pilot simulated a flight into the southern Indian Ocean with up to six stops.

That contradicted his previous conclusion in the New York magazine that Mr Shah simulated one long simulated flight into the southern Indian Ocean.

Given MH370 is widely believed to be somewhere in the vast southern Indian Ocean, this report caused a stir when published in late July.

The FBI revelation about a southern Indian Ocean flight was fuelled by six data points found on the simulator.

Instead of representing a single flight, the New York magazine article writer Jeff Wise now thinks they represent at least two or three separate flights into the southern Indian Ocean.