As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/A IN AFT JUMPSEAT SAID SMELLED OILY / EXHAUST SMELL IN AFT CABIN DURING FLIGHT. NO SMOKE. SAID IT WENT AWAY AND CAME BACK IN DECENT. INSPECTED APU. FOUND LOWER FUEL NOZZLE LEAKING AT PRIMARY PORT. REMOVED B NUT. INSPECTED AND REINSTALLED FITTING. LEAK CHECK GOOD. COMPLETED DUCT BURNOUT. (LP# 4756888)