Just read that AF have released further information on the ACARS traffic :-
02:10Z A/P disengaged and a fault with one of the FBY computers.
02:11Z - 02:13 Faults in the NAV system was reported in a flurry of messages. Then a fault reported in a system that provides instrument readings (IRU?)
02:14Z Fault reported in vertical cabin speed giving rise to decompression of cabin.
ends
FMC