As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:NA** DIVERSION ** EMERGENCY DECLARED ** VISIBLE SMOKE IN COCKPIT MASKS ON STARTED TO DIVERT TO STL EICAS MESSAGE FIRE/OVHT SYS RAN CHECKLIST. ADDITIONAL LIGHTS THAT CAME ON GEAR DOOR. WHEELWELL FIRE ALL THE LIGHTS ON THE OVERHEAD.FOUND SYSTEM RESET SWITCH ON FIRE OVERHEAT TEST PANEL FAILED DUE TO LIQUID FOD FROM CORONAVIRUS DISINFECTANT SPRAY BOTTLE DRIP ON SWITCH. REPLACED PANEL PER AMM 26-11-02-424-004. OPS CHECK NORMAL.