What was found
F/A REPORTED BURNING ODOR IN MID CABIN, NO COCKPIT IND WERE NOTED. SMELL DISSIPATED WHEN UTILITY BUSES WERE TURNED OFF. ONE PAX SMELLED OIL SMELL AT 42A, AFT F/A REPORTED BURNING SMELL ON FINAL APPROACH, IT TO DISSIPATED. CHECKED OVERHEAD LIGHTING, SIDEWALL LIGHTING, READING LIGHTS. CHECKED GALLEY AREAS, LAVS, RAN ENGS AND RAN PACKS WITH ENG AIR SOURCE. RECYCLED TRIM AIR VLVS, RECIRC FANS, GASPER FAN, EQUIP COOLING & NO ODOR. OK FOR SERVICE.