12:59 GMT28 January 2021
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    Five years since the Malaysia Airline Boeing's disappearance, theories are still running amok about the aircraft’s fate – but the majority of people believe the doomed plane crashed into the ocean.

    Air traffic controllers failed to immediately realise that the Beijing-bound Malaysia Airlines Flight MH370 went missing, because they were misled by their own tech equipment, aviation expert Jeff Wise claimed in his book, "‘The Plane That Wasn’t There: Why We Haven't Found MH370".

    READ MORE: MH370: How a Cargo of Fruit and Batteries Could Have Downed the Doomed Plane

    Even though the plane’s ADS-B signal had "winked out" and it had vanished from radars, their computers continued to display the aircraft symbol, he writes in the book.

    The doomed plane had been flying towards waypoint IGARI, which is sometimes called a "blind spot" because it is far enough out over the ocean and is sometimes out of range.

    So, the tracking system occasionally loses aircraft around that waypoint for a couple minutes before they re-emerge on radars.

    "You might think that all this would set off red flags for the air traffic controllers, but in fact this kind of winking out is normal. Air traffic controllers continued to see the plane symbol on their screens as the system assumed the plane remained on course", Wise wrote.

    MH370, which was supposed to be flying over the boundary of Malaysian-controlled airspace to Vietnamese-controlled airspace, was meant to reach air traffic controllers on the ground to inform them that they were leaving the airspace, and then contact the controllers in the new airspace via radio communication.

    READ MORE: Persisting MH370 Enigma: Ex-Pilot Shares CLUE to Where Jet Was Really Heading

    The plane's crew reached Kuala Lumpur controllers, but their Hanoi colleagues, monitoring the plane's movement on their screens, never received the signal.

    "Not until 15 minutes had passed did air traffic controllers in Hanoi begin to wonder why MH370 hadn’t radioed in to establish contact", Wise wrote, adding that this is when they sounded the alarm.

    Malaysia Airlines Flight MH370 with 239 passengers and crew on board went off radars on 8 March 2014. After years of botched attempts to find the site of the wreckage, the Malaysian government stopped the investigation, having acknowledged that they did not know what had happened to the aircraft.

    Despite an extensive search operation conducted jointly by Malaysian, Chinese and Australian investigators, only a few pieces of debris thought to be parts of the wreckage have been discovered at different locations, including South Africa, Mozambique, and the French Island of Reunion in the Indian Ocean.

    Last November, several new pieces of debris allegedly belonging to the ill-fated plane were reportedly found off the coast of Madagascar.

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