What was found
EMERGENCY DECLARED, DIVERTED DUE TO ELECTRICAL ODOR IN AFT GALLEY. OVEN OVERTEMPERATURE ACCOMPANIED BY SMOKE/FUMES (ACRID SMELL) WITH ELECTRICAL SMELL 6-11. OVER TIME, SMELL WENT AWAY. AIRCRAFT LANDED OVERWEIGHT WITHOUT INCIDENT. MAINTENANCE PERFORMED OVERWEIGHT LANDING INSPECTION AS REQUIRED. AIRCRAFT RETURNED TO PHL AND REMOVED FROM SERVICE FOR REPAIRS. ACCOMPLISHED CABIN AIR TROUBLESHOOTING CARD TO VERIFY WORK PERFORMED IN BGR. ISOLATED ODOR TO AFT GALLEY OVEN. MAINTENANCE REPLACED AFT GALLEY OVEN PER AMM 25-35-19 AND ACCOMPLISHED CABIN AIR QUALITY JOB CARD 33L00021001 TO VERIFY OVEN AS THE CAUSE OF SMOKE/FUMES IN CABIN. NO FURTHER ACTION REQUIRED. AIRCRAFT WAS GROUNDED.