What was found
SMOKE BEGAN COMING FROM AFT GALLEY OVENS WHILE EN ROUTE. A FIRE EXTINGUISHER WAS USED TO EXTINGUISH OVEN FIRE. THE AIRCRAFT WAS RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AFT GALLEY OVENS AND FOUND PAPER BURNED INSIDE OF OVENS. THE FIRE HAD BEEN CONTAINED TO INSIDE OF OVENS. THE PAPER WAS REMOVED AND OPERATION OF THE OVENS CHECKED GOOD. THE FIRE EXTINGUISHER WAS REMOVED AND REPLACED.