What was found
IAH - FL 1183 - ON DESCENT INTO IAH, CREW DETECTED SMELL OF SMOKE IN THE COCKPIT. WHILE LOOKING FOR THE SOURCE, THE SMOKE ALARM IN THE FORWARD LAV WENT OFF. SHORTLY AFTER, SMOKE WAS SPOTTED ABOVE THE LEFT FORWARD JUMP SEAT. CREW WENT ON OXYGEN AND STARTED ELECTRICAL SMOKE/FIRE CHECKLIST. THE FLIGHT LANDED SAFELY AT IAH WITH NO FURTHER INCIDENT. MAINTENANCE FOUND THE LIGHT BALLAST FOR THE FORWARD GALLEY BURNED UP. REPLACED SAME. OPS CHECK GOOD. (M)