Smithsonian Channel explores one of the great aviation mysteries of our time in the upcoming one-hour special MALAYSIA 370: THE PLANE THAT VANISHED premiering Sunday, April 6 at 9 p.m. ET/PT. At a time when speculation is rife, the special dives deep into the detail of the Boeing 777, the technologies involved in the search, and aviation procedures that may be transformed in the aftermath of this disaster.