As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OIL FUME SMELL ON FLIGHT DECK DURING DESCENT BELOW 10,000 OIL FUME SMELL ON FLIGHT DECK DURING DESCENT BELOW 10000 PERFORMED CONDITIONAL INSPECTION SMOKE OR FUMES IN CABIN PER AMM 055156 AND FIM 2100 TASK 806. REPLACED BOTH LEFT AND RIGHT RECIRCULATION AIR FILTERS PER AMM 212501. NO ABNORMAL SMELLS DETECTED.