Lots of reports about the Radar possibly being unserviceable. I don't know about the Airbus, but on our Boeing aircraft, if the radar is unserviceable, it tells you so (in the form of various messages on your displays .. e.g. Antenna Fail, Weak, etc)... and ACARS registers this, sending a message via VHF or SATCOM to our maintenance centre.
If the Airbus is the same, and the radar failed, I'm sure it would already be public knowledge.