As far we can see that accidents are not all treated the same way or with the same rigor ...
We have very recently the Falcon 7X after a malfunction (do not know why) is immediately banned from flying before any investigation start
Note that this incident did not cause any casualties
On the other hand we have AF447 ... which has claimed many victims.
After initial analysis of black boxes .. BEA announces that do not know what happened and the investigation continues ...
So long as the BEA does not know (and it is not even able to show that the plane is not faulty by design or management system) that aircraft presents a potential risk that must be assessed
Why grounded the Falcons .. and why let fly the A330
Both aircraft are not recently commissioned .. and both had so far proven reliability.
I see nothing about from EASA
Where is the logic?
Dassault decided to ground the 7x, they then asked EASA and FAA to issue the AD