An article covered by Time magazine recently asked the question, “Could a Computer Glitch Have Brought Down Air France 447? It is extremely well written and inquisitive as are all of Time Magazines feature articles.Read the synopsis of the Time article below:
As the French team leading the investigation into the Air France Flight 447 crash works through the multitude of likely and less likely disaster scenarios — from the repercussions of stormy conditions to an act of terrorism — perhaps among the most difficult to assess will be possible flight computer malfunctions. Air France CEO Pierre-Henry Gourgeon noted on Monday that immediately preceding AF447's disappearance, automatic messages sent by the plane indicated "multiple technical failures." As details emerge regarding these messages, experts will struggle to understand whether they were the inevitable result of the plane's breaking up or indicators of the failures that led to the accident. (Read "What Brought Down Air France Flight 447?")
Gourgeon said the "succession of a dozen technical messages" sent by AF447 showed that "several electrical systems had broken down" immediately prior to the crash. A chronology of these messages acquired by the São Paolo daily Jornal da Tarde show that moments before the plane is believed to have plunged into the ocean, its autopilot became disengaged and the plane sustained damage to its stabilizing controls and flight systems, as well as a failure of the systems that were monitoring the aircraft's speed, altitude and direction: the ADIRU (Air Data Inertial Reference Units) and the ISIS (Integrated Standby Instruments System). These are key components in fly-by-wire systems, which use computers and wires instead of mechanics and hydraulics to control a plane's flight. (Watch TIME's video of the rescue of US Airways flight 1549.)
On Wednesday, TIME revisited an October 2008 incident in which a Qantas Airbus 330 — the same model as AF447 — unexpectedly went into a brief yet harrowing 20-second nosedive, causing multiple injuries and requiring an emergency landing. The investigation that followed blamed an ADIRU failure for the 330's uncommanded dive: one of the plane's three ADIRUs, which are designed to help the plane's flight-control computer fly the plane safely, began sending erroneous data spikes to the flight-control computer.
Posted By Time.com
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