As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANT REPORTED AN ODOR IN REAR OF AIRCRAFT. ODOR MOVED FORWARD. NO APU RUNNING AT THAT TIME, ENGINES ONLY. MAINTENANCE FOUND APU INOPERATIVE. FOUND MAGNETIC DRAIN PLUG SEAL ON APU LOOSE AND LEAKING. INSTALLED NEW SEAL IAW MM 49-91-42.