As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN AND COCKPIT FUMES WERE SMELLED IN ACFT ON FINAL APPROACH, FUMES SMELLED LIKE DIRTY SOCKS. FOUND OIL IN NR 1 AND NR 2 ENGINE DE-OILER TUBES. R & R NR 1 AND NR 2 DEOILER SEALS IAW AMM 72-60-31 LOCK AND LEAK CHECKS GOOD. TESTED FOR OIL ODOR WITH AIR SENSE TESTER NO OIL DETECTED FROM ANY BLEED SOURCE.