What was found
(CAN) AFTER TAKEOFF, DURING CLIMB, THE FLAPS HAD BEEN SELECTED UP IAW NORMAL OPERATING PROCEDURE. THE FLAP POSITION INDICATION, INDICATED THAT THE LT INBD FLAP WAS IN TRANSIT AND NOT FULLY RETRACTED. THE ACFT RETURNED TO THE RAMP AFTER EXECUTING A NORMAL LANDING. THE DEFICIENCY WAS INSPECTED, TROUBLESHOT, AND THE PROXIMITY SWITCH, PN 1-899-15. ASSOCIATED WITH THE LT INBD FLAP WAS REPLACED, FUNCTION CHECKED AND THE ACFT WAS RETURNED TO SERVICE.