What was found
LAV SMOKE INDICATION ON EICAS. THE LEFT AFT LAV SMOKE DETECTOR WAS ACTIVATED. NO FLAME WAS NOTICED, BUT THE A/C DID HAVE A SMOKE (ELECTRICAL) SMELL. DIVERTED TO LAS. PER F/A WORKING AFT GALLEY, WHEN DOOR TO NR 1 OVEN OPENED SMOKE CAME OUT AND AFT LAV SMOKE DETECTION WENT OFF IMMEDIATELY. REMOVED NR 1 OVEN, INSPECTED WIRING, NO FAULTS FOUND. PULLED AND COLLARD NR 1 OVEN C/B AND PLACARD INOP. INSPECTED LAV PRECAUTIONARY NO FAULTS NOTED. OVEN HAS BEEN REMOVED AND REPLACED.