Dr Mahathir, who maintains a powerful influence in his country's ruling party, also suggested the reason why the passengers and crew never acted to stop whatever was happening on board was because they were ''somehow incapacitated''.
''Even if the pilot wants to commit suicide, the co-pilot and the cabin crew would not allow him to do so without trying something,'' he said.
''But no one, not even the passengers, did anything.''
Writing in an opinion piece, Dr Mahathir questioned why no debris or oil slick from the plane has been found.
''Can it be that the plane remained intact on crashing and sank with no trace and no one launching the lifeboat doors, as we are told all these aircraft are equipped with?'' he asked.
''Can one believe this plane quietly floated down into the raging sea and sank conveniently in the deepest part (seven miles deep) of the Indian Ocean?''
Dr Mahathir said it must have taken some effort if the pilot, Zaharie Ahmad Shah, disabled the plane's communication system.
''The co-pilot would notice and for his own life he would have tried to do something . . . was he disabled? Were all the crew members and the passengers disabled?''
Dr Mahathir, 88, who was prime minister for 22 years from 1981, said he is upset that Malaysia Airlines staff were taken hostage by angry Chinese relatives of passengers in Beijing last week, ''because they are blaming the wrong people''.
''The loss of the plane is due to the makers, Boeing. How can Boeing produce a plane that is so easily disabled?'' he said.
Dr Mahathir said in an era where passenger planes can be tracked on mobile phone, and spy satellites operated by some countries can photograph and identify a person on the ground, Boeing must explain how all these means of tracking the plane ''can be disabled, can fail''.
''Either Boeing technology is poor, or it is not fail-safe,'' he said.
''I would not like to fly in a Boeing aircraft unless Boeing can explain how all its system can fail or be disabled.''
Dr Mahathir said Boeing, a multinational corporation based in Chicago, must ''demonstrate possible ways for the communication system to be disabled''.
''Boeing must accept responsibility for building an aircraft that can disappear in mid-air so completely,'' he said.
Boeing has sent experts to Kuala Lumpur to work with Malaysian and international aviation experts investigating the disappearance of the Boeing 777 with 239 people on board during a scheduled flight from Kuala Lumpur to Beijing on March 8.
Dr Mahathir's comments will fuel scepticism among Malaysians that the plane crashed into the Indian Ocean 1500 kilometres west of Perth, where an Australian-led hunt has so far failed to find any trace of the airliner.
Malaysia plans this week to release a preliminary report into the disappearance - but, according to officials, it will shed little light on what happened.
The report is expected to reveal details such as the plane's altitude and speed after turned back from its scheduled course over the South China Sea.
Malaysia's Prime Minister, Najib Razak, told the Wall Street Journal that investigators have made no substantial progress since March 28, when a detailed analysis of satellite data caused the search to be shifted to the Indian Ocean.
''That's all we have until today,'' Mr Najib said.
''That's why it's so frustrating. When you do an investigation, you have to adhere to the principle of 'follow the evidence','' he said.
''But what evidence do we have? It might sound unbelievable but that's all we have. That's all the world has.''
Malaysian police conducting a criminal investigation into the plane's disappearance have not publicly identified any crime.
They have not identified any motive, nor named any suspects, in one of the most baffling mysteries in modern aviation.
Officials in Kuala Lumpur have indicated that unless the plane's black box recording device is found it may never be known what happened to the flight.
Boeing has not responded to Dr Mahathir's comments which were first published in his personal blog and then republished in several Malaysian news outlets.
Finally someone dares speak up and ask the obvious questions about MH370. Maybe he should read this blog: http://beforeitsnews.com/terrorism/2014/03/mh370-cyber-hijack-for-billions-freescale-tech-pilot-warned-about-crisis-gagged-speaks-out-2448396.html
Follow the money!
Posted by Wilai on April 27, 2014 15:33