What was found
FLIGHT ATTENDANTS REPORTED BURNING SMELL IN AFT GALLEY, COULD NOT LOCATE SOURCE. DEBRIEFED CABIN CREW & FLIGHT ATTENDANTS OF NATURE OF SMELL & THEY SUSPECT SOMETHING OF A BURNT FOOD ODOR & NOT ELECTRICAL. WE SENT IN THE BACK & UNABLE TO DETECT ANY SORT OF ABNORMAL SMELL. CONCURRED WITH FLIGHT CREW & RAN BOTH ENGINES. ACCOMPLISHED ELECTRIC POWER TRANSFER CHECKS WITH GALLEY POWER ON & OFF. ALL OKAYED, NO SMELL OR ODOR NOTED IN VICINITY.