Mayday: Air DisasterA new investigation sheds light on the controversial 1961 plane crash that killed U.N. Secretary-General Dag Hammarskjöld.
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Now PlayingMayday: Air DisasterA new investigation sheds light on the controversial 1961 plane crash that killed U.N. Secretary-General Dag Hammarskjöld.0Mayday: Air DisasterSilkAir Flight 185 en route to Singapore crashed into the Musi River in Indonesia after abruptly plunging from its 35,000 feet cruising altitude, killing all 97 passengers on board.