Turbine D,
Slightly more accurate would be to say that the ADIRU which processes the data it receives from the AoA sensor (and other air data sensors) considered the AoA value invalid and sent the code NCD to the other airplane systems.
To my knowledge, the ADIRU doesn't know and doesn't care whether the airplane is flying or not.
Last edited by HazelNuts39; 31st October 2013 at 22:29.