As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW COMPLAINED OF A SLIGHT OIL SMELL IN CABIN IN ALL FLIGHT STAGES. MAINTENANCE REPLACED LT COOLING TURBINE AND RELEASED AIRCRAFT TO SERVICE. DURING MAINTENANCE GROUND RUN PRIOR TO REPLACEMENT COOLING TURBINE FAILED AND FILLED CABIN WITH SMOKE AND A STRONG SMELL OF OIL.