What was found
ON CLIMBOUT, FLIGHT ATTENDANTS REPORTED SMOKE OF AN ELECTRICAL NATURE COMING FROM THE TOP OF ALL GALLEYS. PERFORMED APPROPRIATE COCKPIT CHECKLISTS REMOVING POWER FROM UTILITY BUSES, SMOKE DISSIPATED. SMOKE SMELL RETURNED ON DESCENT. NO SMELL NOTICED ON GROUND. *S/D* UPON ARRIVAL, MECHANICS RAN ALL ELECTRICAL SYSTEMS AND ACCOMPLISHED EXTENSIVE PHYSICAL CHECKS IN THE AREA. PROBLEM WAS NOT DUPLICATED. NO FAULTS WERE FOUND. AIRCRAFT RETURNED TO SERVICE WITHOUT FURTHER INCIDENT.