As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE IN CABIN, FLIGHT DIVERTED. APU AUTO SHUT DOWN: CHECKING OIL QTY AND INLET, AND APU COMPT. FOR LEAKS. APPROX 4 QUARTS OF OIL ADDED. STARTED APU, VAST QUANTITY OF SMOKE FROM TAIL PIPE. ODOR CAUSED BY APU OIL LOSS. APU DEFERRED INOP. PACK BURNOUT ACCOMPLISHED AND AIR CONDITIONING RECIRC FILTERS REPLACED. REPLACED APU. CABIN AIR NORMAL.