What was found
APPROXIMATELY 7 HOURS INTO FLIGHT A BURNING RUBBER SMELL EMANATED FROM THE MID GALLEY OR MID LAVATORY AREA THAT GREW WORSE. ACCOMPLISHED SMOKE FUME CHECKLIST. REMOVED LT & RT UTILITY BUS, LT & RT RECIRCULATION FAN. AFTER LANDING EQUIPMENT COOLING LIGHT CAME ON. PERFORMED INITIAL INSPECTION & OPERATIONS CHECKS AS REQUIRED IAW AMM 5-51-58-91 0-801C1. FOUND GALLEY OVEN LOCATION 103 AT FIRST CLASS BLOWING SMOKE. R & R GALLEY OVEN & CONTROLLER IAW AMM 25 -34-00. OPERATIONS CHECKED NORMAL. R & R LT & RT HEPA FILTERS IAW 21-25-02.