Software bug in Bombardier airliner made planes turn the wrong way

guest · May 29, 2020

Software bug in Bombardier airliner made planes turn the wrong way
May 29, 2020
https://www.theregister.co.uk/2020/05/29/bombardier_missed_approach_bug/

A very specific software bug made airliners turn the wrong way if their pilots adjusted a pre-set altitude limit.

The bug, discovered on Bombardier CRJ-200 aircraft fitted with Rockwell Collins Aerospace-made flight management systems (FMSes), led to airliners trying to follow certain missed approaches turning right instead of left – or vice versa.
Missed approaches are used when pilots aren't confident that they're going to land safely. They are a published path that helps the pilot safely position the aeroplane for another attempt.

Bugs in flight control software are rare, though not unknown. Most bugs in airliners tend to be unforeseen memory overflows, as both Airbus and Boeing have discovered over the years.
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Software bug in Bombardier airliner made planes turn the wrong way

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