The Muslim pilot probably committed suicide by deliberately hiding the plane from radar and flying it thousands of miles off course, which ended up in a very deep 6000-metre hole about
1500 kilometres west of Perth and along the longitude of Penang. The aircraft skirted around Penang, as the captain said goodbye to his home island.
Zaharie Shah was feeling depressed and lonely in the days leading up to the plane's disappearance after his wife divorced him.
The uncertainty prompts an uncomfortable question. Did pilot Zaharie Shah crash the plane on purpose, killing himself, the crew and the passengers? Such incidents are very rare. The
US Aviation Safety Network, external lists only eight airline accidents in the whole of aviation history that are thought possibly to have been caused by pilot suicide. Rare, but not unheard of.
An experienced Boeing 777 captain, he knows the Asian air routes like a commuter knows short cuts home. He flew them them for 17 years.
He says the clues are in the route it took after it vanished from air traffic control. It turned back on itself and flew along the border of Malaysia and Thailand.
"It flew in and out of the countries eight times," he says. "This is probably very accurate flying rather than just a coincidence. As both air traffic controllers in both those countries would probably assume that the aircraft was in the other country's jurisdiction and not pay it any attention."
A year after the disappearance of a Malaysia Airlines plane with 239 on board, it's still unknown what happened. Could pilot suicide have been the cause?
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