As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED DUE TO A BURNING ODOR, ELECTRICAL, IN THE COCKPIT. NO ECAM, ALL SYSTEMS NORMAL. PERFORMED A SMOKE ODOR INSPECTION IAW TSM 24-00-00-810-823A. FOUND AVIONICS VENT EXTRACT FAN 18HQ EMITTING A BURNED ODOR IN THE FLIGHT DECK. R & R THE BUTTERFLY VALVE 21HQ IAW AMM 21-26-54. R & R THE AVIONICS FAN IAW AMM 21-26-51. OPS CHECKED OK.