As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE ON FLIGHT DECK AND CABIN DURING FINAL APPROACH. INSPECTED ACFT FOR EVIDENCE OF SOURCE OF SMOKE AND FOUND CEILING LIGHTS AT ROWS 1 ANS 2 LT TO SHOW SIGNS OF OVERHEATING . BOTH AIR CONDITIONING PACKS WERE RUN ISOLATED AND TOGETHER ON EA ENGINE BLEED SOURCE AND NO EVIDENCE OF SMOKE WAS FOUND.