As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON SHORT FINAL ABOUT 1000 FT, ACFT CABIN FILLED WITH MODERATE AMOUNT OF VAPOR OF UNKNOWN SOURCE, OBSTRUCTING F/A VISION. ALSO ODOR OF HOT WET BLEED AIR. LANDING UNEVENTFUL. AFTER WALKAROUND COMPLETED, FOUND OIL LEAKING OUT OF NR 1 ENGINE DRAIN. ALSO ON MAINTENANCE START UP OF NR 1 ENGINE, GROUND CREW REPORTED SMOKE AND OIL OUT OF THE P2.2 EXHAUST VENT. NR 1 ENGINE REPLACED. RETURNED TO SERVICE.