As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECIEVED VENT EXTRACT FAULT CAUTION MESSAGE. ALSO NOTICED A NOISE, VIBRATION AND A BURNING ODOR. NOISE AND VIBRATION WENT AWAY WHEN FAULT ILLUMINATED. SMELL DISSIPATED IN 20 MINUTES. COMPLIED WITH ECAM PROCEDURES. REPLACED EXTRACT FAN IAW MM 21-26-51. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.