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by kijin 294 days ago
Remember the Airbus that crashed in the middle of the Atlantic because one of the pilots kept pulling on his yoke, and the computer decided to average his input with normal input from the other pilot?

Conflict resolution in redundant systems seems to be one of the weakest spots in modern aircraft software.

1 comments

Air France 447: https://en.m.wikipedia.org/wiki/Air_France_Flight_447

Inputs were averaged, but supposedly there’s at least a warning: Confused, Bonin exclaimed, "I don't have control of the airplane any more now", and two seconds later, "I don't have control of the airplane at all!"[42] Robert responded to this by saying, "controls to the left", and took over control of the aircraft.[84][44] He pushed his side-stick forward to lower the nose and recover from the stall; however, Bonin was still pulling his side-stick back. The inputs cancelled each other out and triggered an audible "dual input" warning.