As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FAINT OIL ODOR NOTED DURING DESCENT. REMOVED FROM SERVICE. GROUND RAN BOTH ENGINES AT VARIOUS POWER SETTINGS WITH BLEEDS 1 AND 2 SELECTED ON. NO ABNORMAL ODORS NOTED. PERFORMED PURGE OF AIR CONDITIONING DUCTS IAW AMM 21-00-00-160-801, AND RIL 84-21-016. NO ABNORMAL ODORS NOTED IN CABIN OR FLIGHT DECK. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.