As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF, FLIGHT CREW NOTED A BURNING OIL ODOR FROM THE PACKS. FUMES DISSIPATED AND THE FLIGHT LANDED UNEVENTFULLY AT DESTINATION. ON INSPECTION, MAINTENANCE FOUND OIL LEAKING FROM THE APU. PERFORMED A DUCT BURNOUT AND RETURNED THE AIRCRAFT TO SERVICE.