As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVIONICS SMOKE DISPLAYED ON UPPER ECAM SCREEN. AVIONICS SMOKE FAULT DUE TO REPETITIVE AVIONIC SMOKE, ECAM WARNINGS BEING CLEARED BY CB CYCLING. ACCOMPLISHED TSM, ALL CHECKED GOOD, NO FAULTS ON ANY SYSTEMS. REPLACED AVIONIC EQUIPMENT VENTILATION COMPUTER AFTER TALKING TO LINE MAINTENANCE. CHECKED OK AGAIN.