One thing that's sure is that it wasn't trainning, but rather post-maintenance test flight. Sud747 or moderators, please change the topic title accordingly, thank you.
There was no mention in media that ATC was told that anything out of the ordinary happened on the flight, it wasn't cut short, there was no communication of changed intentions, so whatever happened, manifested itself suddenly and unexpectedly on approach and that's not something you'd see with ports taped over or probes blocked.
There was a leak from the state prosecutor (although this might be mistranslation and fellow might actually be the investigating judge) that there was pitchup, surge in power, stall and crash. Some have used this statement by complete aviation amateur to theorise about FBW Airbus protections gone awry. Well the only protection that gives you pitch-up is high-speed protection and I have reasons to believe that the aeroplane was nowhere near its Vmo of 350 kt on DME arc. Protections are also designed to shut themselves off if there are discrepancies between all three air data or inertial reference sensors. There was also a question of pitch-power coupling in A320. In normal law, there's always ample and timely application of autotrim to counter any pitch changes with power, whether flying manually or with AP engaged. If you're out of normal law, alpha floor is deactivated i.e. there's no automatic TOGA power to fight with.
However, we still don't know what happened and everything and anything I've written may or may not be related to the accident and for the time being, this accident absolutely cannot be used as an argument to move Airbus approach to flight controls and automation in any direction.
If you're reffering to some old accident, please check out
Aviation Safety Network and acquaint yourself with the facts about it. There are database entries for each and every accident and significant incident that happened to transport category aeroplane from 1943 onwards, FBW Airbi included. I'd especially recommend the site to PPRuNers peppering their posts with "QF72" - it might help them include "MH124" into their vocabulary. And while browsing through the reports, bear in mind that it is not the responsibility of the accident investigators to answer to a question "why did it happen?" What they're telling us is what happened, how it happened and what we have to do to prevent it from reccuring. They never, ever blamed anyone or anything.