As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LIGHT HAZE AND ODOR IN CABIN, APU OIL LEAK, DEFERRED APU, OPN 5089 DUCT BURN-OUT. REMOVED APU DOOR ASSEMBLY CLEANED ASSEMBLY AND APU AND UPPER SIDE OF AIR BOX. REPLACED ALL REMOVED RAN APU AND CHECKED FOR ODOR AND SMOKE. ALL OPS NORMAL NO DEFECTS. MCO AND PLACARD REMOVED.