Ghosts in the code: the near crash of Qantas flight 72

Qantas flight 72 sits on the tarmac in Learmonth after the emergency landing. Image source: The Daily Mail
The Qantas A330 involved in the accident. Image source: Wikipedia
ADIRU Data Export Format. Image source: the ATSB
How angle of attack is encoded. Image source: the ATSB
How altitude data was encoded as angle of attack. Image source: the ATSB
Examples of checks that failed to catch the bad data. Image source: the ATSB
How the data got past the computer’s comparison check of the ADIRU readings. Image source: the ATSB
The two control mechanisms triggered by the bad AOA data. Image source: the ATSB
Reenactment and simulation of the dive. Video source: Mayday
Emergency services work on the plane after the emergency landing. Image source: news.com.au
Damage to overhead bins and passenger service units. Image source: the ATSB
Damage to the ceiling in the aisles. Image source: the ATSB
A man receives medical attention after the accident. Image source: the Sydney Morning Herald
Damage to the aisle ceiling. Image source: NZHerald
VH-QFA, the aircraft involved in the accident, photographed in 2018. Image source: Masakatsu Ukon

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Analyzer of plane crashes and author of upcoming book (eventually™). Contact me via @Admiral_Cloudberg on Reddit or by email at kylanddempsey@gmail.com.

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Admiral Cloudberg

Admiral Cloudberg

Analyzer of plane crashes and author of upcoming book (eventually™). Contact me via @Admiral_Cloudberg on Reddit or by email at kylanddempsey@gmail.com.

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