As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU BLEED SMOKED THE CABIN AT DEPARTURE TIME. PAX DEPLANED. CORRECTIVE ACTION: FOUND OIL IN APU DISCHARGE DUCT. R/R APU PER AMDS WORK CARD 4901-9401. OPS AND LEAK CHECK GOOD. ECS DECONTAMINATION OF DUCTS SUCCESSFUL. OK FOR SERVICE. (0787159) OSD: 1/31/2025