As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INFLIGHT WE EXPERIENCED A SIGNIFICANT "HUM" AND VIBRATION IN THE FOWARD GALLEY AND FLT DECK FOLLOWED BY BURNING SMELL AND CB AE2 PANEL 123VU POPPED ECAM VENT EXTRACT FAULT -R+R AVIONICS FAN (18HQ) IAW AMM 21-26-51, OPS CHECK OK, NO FAULTS NOTED OR DEFECTS IAW AMM 21-26-00