What was found
AIRCRAFT WAS GROUNDED: ON TOP OF DESCENT FIRST OFFICER AND CAPTAIN SMELLED ELECTRICAL FUMES ON SEVERAL OCCASION. NO SIGN OF SMOKE. NO CAUTION OR WARNING. ACCOMPLISHED JOB CARD 08L00021001 SMOKE ODER FUMES INITIAL TROUBLESHOOTING AND FOUND LEFT HAND OVEN HAS BURNT ELECTRICAL SMELL WHEN INUSE. REMOVED AND REPLACED LEFT HAND OVEN. NO BURNT ELECTRICAL ODER NOTED AFTER REPLACEMENT. PER AMM 25-32-03.