As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DETECTED SMOKE IN THE CABIN AT 500 FT AFTER T/O. SMOKE WAS NOT THICK BUT SMELLED LIKE PLASTIC. SMOKE DISSIPATED UPON RETURN TO FIELD. INSPECTED AFT EQUIPMENT BAY, GEAR BAY, AVIONIC BAY, ALL INTERIOR LIGHTS AND BALLAST. NO MESSAGES ON ECAS. EVERYTHING WORKS, ALL CHECKS GOOD.