As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANT REPORTED TOXIC FUMES DURING ALL PHASES OF FLIGHT. MAINTENANCE FOUND THE APU LOW OIL LEVEL SWITCH LEAKING OIL AND REPLACED THE PACKING ON THE SWITCH PER AMM 49-93-16. A SATISFACTORY LEAK CHECK WAS ACCOMPLISHED.