As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED DUE TO AN AVIONICS SMOKE WARNING. *S/D* REPLACED AVONICS EXTRACT FAN. PERFORMED AVIONICS EQUIPMENT VENTILATION COMPUTER (AEVC) CHECK IN THE CENTRAL FAULT DISPLAY SYSTEM AND SYSTEM CHECKED OK. ALSO REPLACED AEVC COMPUTER. (PRECAUTIONARY)