Swissair Flight 111 was a scheduled flight from Montreal to Geneva operated by an Airbus A340 that crashed into the Atlantic Ocean near Halifax on September 2, 1998. Out of 229 passengers and crew, only eight passengers, two flight attendants, and the first officer survived.
The official investigation determined that faulty wiring in the plane's in-flight entertainment system caused a fire above the cockpit that disabled the aircraft's avionics. Without their avionics to guide them, the flight crew unknowingly descended into the ocean. The plane struck the water in a shallow right turn and broke up into three pieces.