As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND SMOKE REPORTED IN CABIN. RECIRCULATING FAN MESSAGE. WIRE BUNDLE W4104 FOR THE RT SIDE CABIN AIR RECIRCULATION FAN SHORTED ON ADJACENT SUPPORT BRACKET. THE SUBJECT WIRE HARNESS WAS REPLACED WITH HARNESS. THE RT SIDE CABIN AIR RECIRCULATION FAN WAS ALSO REPLACED FOR PRECAUTION.