Top 5 Leading theories about Malaysia Airlines flight 370. The disappearance of Malaysia Airlines flight 370 leaves everybody wondering. What happened?
5. The pilot committed suicide
Though uncommon, there have been 24 cases of in-flight pilot suicide over the last two decades. SilkAir Flight 185 and EgyptAir Flight 990 are the two commonly cited examples of this type of tragedy. In both cases, investigators concluded that the pilots deliberately caused the crashes.
4. Financial motive
The disappearance of the flight may be the result of psychological or personal problems of someone on board, said police chief Bakar. "Maybe somebody on the flight has bought a huge sum of insurance, who wants family to gain from it or somebody who has owed somebody so much money," he proposed at a news conference days after the plane vanished.
Given reports that the plane's communications transponders were deliberately turned off — one after the other — investigators believe sabotage is a possibility. Someone on board seemingly changed the plane's course — and deliberately masked its location from radar systems. Turning off the plane's transponder "would require disabling a circuit breaker above and behind an overhead panel. Pilots rarely, if ever, need to access the circuit breakers, which are reserved for maintenance personnel."
Police chief Khalid Abu Bakar told reporters that the criminal investigation was now focused on four possible scenarios, one of which is a hijacking. If it was hijacked, though, what was the plan? That much, investigators don't know. Most hijackings end with a ransom exchange or, as we saw on 9/11, a much more public display of destruction. MH370, it appears, ended in the Indian Ocean, or did it...?
1. A catastrophic event
Satellite data showed that the plane flew off radar for up to seven hours — meaning that the plane continued traveling until its fuel ran out. It's possible that everyone on board was unconscious or dead due to explosives or rapid or slow decompression, which can occur from a number of instances while traveling in an aircraft. If they ran out of oxygen the plane possibly continued to fly on autopilot for hours and could have crashed anywhere after running out of fuel.