Probable Cause
The partially recovered wreckage revealed no evidence of explosion, fire, or any electrical or mechanical failure, and an initial theory of sabotage was ruled out.
The investigation concluded that the probable cause was "due to the irrational control inputs by the captain following complete unawareness of the attitude as his AI had malfunctioned. The crew failed to gain control based on the other flight instruments."
U.S. Federal District Judge James M. Fitzgerald, in a 139-page decision issued 1 November 1985, rejected charges of negligence against the Boeing Company, Lear Siegler Inc, and the Collins Division of Rockwell International Corporation in a suit related to the crash.
Read more about this topic: Air India Flight 855
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