The cause of the corrupted data is not known but it did happen multiple times in a short period and only on an A330s. Once Airbus knew what the problem was, th

The cause of the corrupted data is not known but it did happen multiple times in a short period and only on an A330s. Once Airbus knew what the problem was, they were able to detect and mitigate it with a software update. They didn’t fix the hardware.