Computer Error in Qantas Jet Mishap: Investigators->
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highways
highways writes "Preliminary investigations into a Qantas Airbus A330 mishap where 51 passengers were injured has concluded that it was due to the Air Data Inertial Reference System feeding incorrect information into the flight control system. The flight control system may override the pilot if it detects a potentially dangerous flying condition.
Quoting from the ABC report (http://www.abc.net.au/news/stories/2008/10/14/2391134.htm):
"Authorities have blamed a faulty onboard computer system for last week's mid-flight incident on a Qantas flight to Perth.
The Australian Transport Safety Bureau (ATSB) said incorrect information from the faulty computer triggered a series of alarms and then prompted the Airbus A330's flight control computers to put the jet into a 197-metre nosedive.
At least 51 passengers and crew were hurt, many suffering broken bones and spinal injuries, when the plane carrying 313 people from Singapore to Perth climbed suddenly before plunging downwards on October 7.
The plane was cruising at 37,000 feet when a fault in the air data inertial reference system caused the autopilot to disconnect.
But even with the autopilot off, the plane's flight control computers still command key controls in order to protect the jet from dangerous conditions, such as stalling, the ATSB said."
So much for DO-178B (http://en.wikipedia.org/wiki/DO-178B)."
Link to Original Source
Quoting from the ABC report (http://www.abc.net.au/news/stories/2008/10/14/2391134.htm):
"Authorities have blamed a faulty onboard computer system for last week's mid-flight incident on a Qantas flight to Perth.
The Australian Transport Safety Bureau (ATSB) said incorrect information from the faulty computer triggered a series of alarms and then prompted the Airbus A330's flight control computers to put the jet into a 197-metre nosedive.
At least 51 passengers and crew were hurt, many suffering broken bones and spinal injuries, when the plane carrying 313 people from Singapore to Perth climbed suddenly before plunging downwards on October 7.
The plane was cruising at 37,000 feet when a fault in the air data inertial reference system caused the autopilot to disconnect.
But even with the autopilot off, the plane's flight control computers still command key controls in order to protect the jet from dangerous conditions, such as stalling, the ATSB said."
So much for DO-178B (http://en.wikipedia.org/wiki/DO-178B)."
Link to Original Source
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Computer Error in Qantas Jet Mishap: Investigators