Word: flighting
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...Qantas Flight 72 had been airborne for three hours, flying uneventfully on autopilot from Singapore to Perth, Australia. But as the in-flight dinner service wrapped up, the aircraft's flight-control computer went crazy. The plane abruptly entered a smooth 650-ft. dive (which the crew sensed was not being caused by turbulence) that sent dozens of people smashing into the airplane's luggage bins and ceiling. More than 100 of the 300 people on board were hurt, with broken bones, neck and spinal injuries, and severe lacerations splattering blood throughout the cabin. (Read...
After seemingly an eternity - in reality, the nosedive lasted 20 very long seconds - the flight crew wrested control of the plane from its wayward computer and made an emergency landing at a remote military and mining airstrip 650 miles short of Perth. (Watch TIME's video of the rescue of US Airways flight...
Following an investigation of the A330's uncommanded dive, Australian aviation officials, assisted by U.S. and French authorities, blamed a pair of simultaneous failures for the near disaster. The plane has three air data inertial reference units (ADIRUs), which are designed to help the plane's flight-control computer fly the plane safely. The system is intended to eliminate the possibility of electronic error: the flight computer, which is always monitoring the trio, can disregard one ADIRU if it begins relaying information that conflicts with the other...
...that's not what happened when one of them went awry on Oct. 7 and began sending erroneous data spikes on the plane's angle of attack (AOA) - the angle between its wings and the air flowing over them - to the flight-control computer. "For some reason, the damn computer disregarded the healthy channels," says Hans Weber, an aviation expert who heads Tecop International, an aviation-consulting firm in San Diego. "Instead, it acted upon the information from the rogue channel." The computer, responding to the faulty data, put the plane into a dive. (Read "Is There a Cause...
...preliminary investigative report, released on March 6, the Australian Transport Safety Bureau said Airbus had initially said it didn't know of any other similar events. But when the same thing happened again, involving a different aircraft, on Dec. 27, Airbus combed its computerized flight files and found data fingerprints suggesting similar ADIRU problems had occurred on a total of four flights. One of the earlier instances, in fact, included a September 2006 event on the same plane that entered the uncommanded dive in October (the other three flights had continued safely on). The same VCR-sized ADIRU...