As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NEAR TOP OF CLIMB, COCKPIT ODOR OF ACRID BURNING SMELL NOTICED. NO ECAM OR VISUAL CUES. DURING CRUISE CHECK NOTICED FAN IN AMBER DISPLAYED ON COND PAGE. RECYCLED CAB FAN AND SMELL REOCCURRED IMMEDIATELY. RETURNED TO AIRPORT. THE SHOP REPORT INDICATED THAT THE REAR BEARING SEIZED, THE FRONT BEARING WAS DRY, THE FAN OVERHEATED BUT THE STATOR WAS ELECTRICALLY NORMAL. THE FAN WAS DIRTY AND SMELLED OVERHEATING.