It took nearly two years to find the black boxes from Air
France Flight 447, but the Rio de Janeiro to Paris flight that fell into the
Atlantic Ocean in the early hours of June 1, 2009, could offer insight into
what may have gone wrong on AirAsia's Flight 8501. Both flights killed everyone
on board, both were flying into storms when they disappeared, and — in both
cases — it seemed to the pilots of the Airbus that a climb was the way out of
their predicament.
In the Air France flight, the three pilots of the Airbus
A330 were confused by faulty air-speed data after key sensors iced over. Then,
about 25 minutes into turbulence, the autopilot and autothrust cut out, and the
pilot at the controls began a steep climb, despite requests from the co-pilot
in the cockpit to descend. Four minutes and 23 seconds after the first alarms
sowed panic and confusion over how to regain control of the aircraft, the plane
slammed into the ocean, plummeting belly first at nearly 11,000 feet (3,350
meters) per minute. The wreckage was found 12,800 feet (3,900 meters) beneath
the surface, its black boxes intact.
Above the Java Sea, the pilot of the AirAsia Airbus A320
told air traffic control he was approaching threatening clouds, but he was
denied permission to climb to a higher altitude. The plane lost contact minutes
later. Search teams have not yet found the black boxes containing the same
crucial information that pinpointed the causes of the Air France flight. The
2009 crash ended up being, at least in part, a lesson in the hazards of
automation.
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