no apology necessary.
But if I remember my A320 and from reading on ADIRUs, there are 3 and one input to the ADIRU is from the pitot/static system. Losing that input would cause a fault and require selecting ADIRU3 to regain information IF ADIRU3 had good info. Correct?
I realize all accidents are the exception to the rule and I have no axe to grind about any manufacturer. I have flown Boeings, Airbus, Fokkers, McDougs along with a number of businessjets. I understand that engineers at one company may have a different philosophy and approach to building an airplane. Not necessarily better but different. I also have yet to find one that fits the scaremongering some offer as to Airplane X is a flying death trap. I also recognize there are personal preferences and parochial biases. But I also remember the two caveats... all airplanes are compromises and all airplanes have strengths and weaknesses. Play to the strength. Respect the weakness.
yes, now maybe a bit trite but ancora imparo