As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING DESCENT BETWEEN FL310 TO FL260 FLIGHT DECK CREW AND CABIN CREW NOTED A STRONG ODOR OF SMOKE. ODOR DISSIPATED BUT REOCCURRED BRIEFLY AT 3000 FT. FLIGHT LANDED WITHOUT FURTHER INCIDENT AND SNAG ENTERED IN LOG BOOK. INSPECTED FWD ENGINE COMPCOMPARTMENT FOUND NO FAULT. PERFORMED 2 ENGINE RUN FOR 10 MINUTES WITH EACH PACK RUNIING FOR 5 MINUTES. NO ODOR OF SMOKE OBSERVED, ACFT IS OK FOR SERVICE.