As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH STRONG AROMA OF FUEL/OIL FILLED CABIN COMING FROM APU IN AFT EQUIPMENT BAY. AUXILIARY POWER UNIT, APU, DOOR POSITION VERIFIED CLOSED. DEFER CLEARED, PLACARD REMOVED. COMPLIED WITH "APU CHANGE", ACFT RETURNED TO SERVICE.