As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1687 - FLL - CREW RECEIVED ECAM MESSAGE FOR VENT BLOWER FAULT. PRIOR TO ECAM, FAINT BURNING SMELL WAS DETECTED. ALSO HEARD MECHANICAL SOUND OF BLOWER FAILING AND STOPPING. SMELL DISSIPATED AFTER GOING TO OVERRIDE. MAINTENANCE REMOVED AND REPLACED THE AVIONIC EQUIPMENT VENT BLOWER FAN 20HQ IAW AIRBUS MAINTENANCE MANUAL 21-26-51.