Airbus A400M Software Update Caused Crash




/ 4 years ago

Airbus A400M-1969

Investigators for the Airbus A400M crash have narrowed down the cause of the software configuration error that led to the crash. According to sources speaking to Reuters, the most likely scenario is that critical software data was wiped from three of the engines during a software upgrade.

During a software upgrade for the engines, data pertaining to the engines, called “torque calibration parameters” were inadvertently wiped. Airbus had known about the potential issue that a software installation could wipe critical data. However, the risk was deemed low and Airbus simply implemented more checks. Unfortunately, in this case, the extra checks failed to discover the problem until it was too late.

Once in flight, a safety check by software would also determine if the engines had any problem. However, this check was only meant to stop faulty engines from causing damage, and to shut down the engines if needed. In this case, the engineers had never envisioned that 3 engines would have to be shut down and the critical loss of power eventually caused the crash.

The cause of the wipe has been identified as the Airbus software used to conduct the installation. Airbus has since warned its customers to cease using the faulty software. With even Boeing finding critical software bugs, one wonders how much care is being taken to software stability and if we can ever trust a windowless cockpit.

Thank you Reuters for the information.



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