As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - DURING MAINTENANCE INSPECTION AN OIL SMELL WAS REPORTED IN THE CABIN WITH THE NR 2 ENGINE BLEED AND PACS ON FULL HOT. MAINTENANCE REMOVED AND REPLACED THE NUMBER TWO ENGINE, OPERATIONALLY AND LEAK CHECKED WITH NO DEFECTS. AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.