We recently had an experience in A330 SIM when ADRS were blocked for unreliable speed pilot raised the pitch to deal with increasing airspeed. The aircraft went in deep stall and the nose dropped. The aircraft went in dive and could not be pulled out as the elevators had lost their effectiveness. it shook up the pilots but then we realised unless the data of that specific manoeuvre flight path is in the software the SIM behaviour cannot be taken as realistic of the aircraft flight path. So using SIM for AF447 type testing will be erroneous.