As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUME EVENT IN REAR GALLEY. PERFORMED INSPECTION OF ECS BETWEEN PACK INLETS AND PACK DOWNSTREAM CHECK VAVLES FOR CONTAMINATION IAW AMM 21-52-00. NO CONTAMINATION FOUND. ON FURTHER INVESTIGATION OF MIXING BAY, FOUND HYDRAULIC FLUID CONTAMINATION AT LOWEST POINT UNDER INSULATION BLANKETS. CLEANED THE CONTAMINATION FROM MIXING BAY IAW AMM 12-21-12. R & R BOTH RECIRCULATION FILTERS IAW AMM 21-21-41.