As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 259 BDL-FLL. DURING BOARDING ODOR IN CABIN AFTER TURNING APU BLEED ON.; COMPLIED WITH I/N 2017-T015 M. IDENTIFIED SOURCE OF ODOR TO APU. FOUND OIL SATURATION. PERFORMED LVL A ECS DECON (NO 30 DAY HISTORY). CABIN AIR QUALITY GOOD AFTER ECS DECON.