Air France black box: Air France Flight 447 was brought down by a combination of faulty speed sensors and confusion in the cockpit, according to a preliminary analysis by French investigators.
A preliminary report on the Air France Flight 447 crash in the Atlantic Ocean two years ago suggests that while some equipment malfunctioned, the pilots’ inability to respond properly to key instruments sent the plane into a 3.5-minute plunge that killed all 228 people aboard.
The findings by France's Bureau of Investigations and Analyses, based on data recently recovered from the Airbus 330’s black boxes, bolster early suspicions that speed sensors known as Pitot tubes had iced over and malfunctioned. This was a problem on Airbus planes that Air France had been aware of at the time of the crash, which occurred en route from Rio de Janeiro, Brazil, to Paris.
But the findings indicate that it wasn't the malfunctioning speed sensors alone that brought the plane down. They also suggest that pilots had enough information at their fingertips to determine what was happening, suggesting that they were not experienced or not prepared to deal with the sudden crisis that developed two hours into the transatlantic flight. Cockpit displays remained accurate and the engines remained fully functional and responsive to the pilots throughout the flight.
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