As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE IN COCKPIT AND CABIN DURING FLIGHT. GROUND RAN AIRCRAFT WITH BLEEDS ON INSPECTED APU AREA FOR LEAKS OF ANY KIND, NONE FOUND. INSPECTED ALL INTERIOR LIGHTS FOR CONDITION AND PROPER OPERATION NO DEFECTS FOUND AT THIS TIME. NOTE: HEAT EXCHANGER WAS CHANGED AT RON THE PREVIOUS NIGHT, THIS WAS FIRST FLIGHT OF THE DAY. SUSPECT SMALL AMOUNT OF CLEANING FLUID WAS CAUSE OF SMOKE.