What was found
AFTER TAKEOFF WITH FLAPS SELECTED UP THE YELLOW LEADING EDGE FLAP INDICATOR STAYED ON WITH CORRESPONDING NR 7 SLAT INTRANSIT LIGHT ON THE SECOND OFFICERS'S AUXILIARY PANEL. CYCLED THE FLAP PER CHECKLIST, LIGHTS STAYED ON AS STATED ABOVE. RETURNED TO DEPARTURE FIELD WITH OUT INCIDENT. *S/D* FOUND PROBLEM WITH NR 7 SLAT TO BE AN INDICATION PROBLEM. REMOVED AND REPLACED NR 7 SLAT ACTUATOR AS PER MAINTENANCE MANUAL 37-81-32. OPERATIONAL CHECK NORMAL, LEAK CHECK NORMAL.