Aviation expert explains new theory behind what really went wrong in Air India crash as unseen detail ‘changes everything’

An aviation expert has said there is evidence from the video of the crash that supports a particular theory, and he broke down what he believes happened.

An Air India flight, that was attempting to leave Ahmedabad last week on June 12 on its way to London, Gatwick, crashed only moments after leaving the airport.

The Air India flight was carrying 242 passengers and crew members on board and of these, 169 are Indian nationals, 53 are British nationals, 1 Canadian national and 7 Portuguese nationals.

The seemingly sole survivor of the plane crash was a British national, 40 year-old Vishwash Kumar Ramesh.

Tributes have flooded in from all around the world and authorities have insisted they will find out what the cause of the crash was.

Authorities have launched an investigation to discover the cause of the crash (Siddharaj Solanki/Bloomberg via Getty Images)

While investigations get underway, aviation experts have weighed in one what they believe could have been the cause of the crash, studying the limited footage and information currently available.

Captain Steve Schreiber, a commercial airline pilot and YouTuber recently made a video discussing a new theory that he believes is supported in the video footage of the plane moments before it crashed down to the ground.

In the video he said he believes the plane suffered double engine failure and was unable to generate enough power to lift off and elevate into the sky.

He said: “I’m going to show you something and explain it because it is a total game changer.

“Right there, my friends, take a look, a lot of people have been talking about the RAT had deployed, what is a RAT?”

Captain Steve showed a freeze frame of the Boeing 787 Dreamliner plane seconds before the crash, with a part of the plane’s belly circled.

He said from the footage it appeared as if the RAT, ram air turbine, had deployed and explained how it works.

He said that on this type of aircraft, the RAT is automatically deployed under one of three conditions: “A massive electrical failure, a massive hydraulic failure or a dual engine failure.”

Captain Steve broke down the 'evidence' he says points to the cause of the crash (Captain Steve/YouTube)

He continued: “It looks like a little Evinrude motor, it's a little two-bladed prop. Its function is to provide electrical and hydraulic pressure for the aircraft in an extreme emergency.

“The purpose of the ram air turbine is to provide electrical and hydraulic pressure for the aircraft in an extreme emergency.”

He added that the small dot, circled in his video, is evidence that the RAT was deployed, however he added that it is not designed to be deployed at such a low altitude.

He also said: “It is evidence for us it was dual engine failure, most likely. It could have been electrical issue, it could have been hydraulic issue, it could have been either one of that. But I think the fact the airplane is mushing out the sky gives the idea it was a dual engine failure."

While the captain is confident in his assertions, at this point, it is only a theory, and Indian authorities are yet to confirm or announce what they believe was the cause of the crash.