As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT AND FINAL APPROACH, A STRONG SMOKE ODOR AND SMOKE IN THE COCKPIT AND CABIN. SMOKE DISSIPATED ON LANDING. INTERROGATED MDC AND FOUND NO CURRENT FAULTS. RAN APU WITH EACH PACK WHILE ENGINES OFF WITH NO FAULTS FOUND. ALSO RAN BOTH ENGINES WITH EACH PACK WHILE APU OFF WITH NO DEFECTS NOTED AFTER EXTENDED PERIOD OF TIME. COULD NOT DUPLICATE FAULT AT THIS TIME IAW AMM.