As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEAVY OIL SMELL COMING FROM NR 1 PACK. 1 PACK INOPERABLE.TROUBLE SHOT TO THE PACK NR1 TURBINE INLET TEMP SENSOR WAS CAUSING THE OVER HEAT CONDITION. REMOVED AND REPLACED NR 1 PACK TURBINE INLET TEMP SENSOR, REF MD-10-30 AMM 21-53-32-4. LEAK AND OPERATIONS CHECKED GOOD. PERFORM THE DISTRUBUTION DUCT ODOR CLEANING/BURNOUT PROCEDURE FOR THE NR 1 PACK, REF AMM 21-53-00-7. NO DEFECTS NOTED AND NO OIL SMELL NOTED.