What was found
CLT - ON CLIMBOUT FROM CLT, CREW REPORTED A SPLIT FLAP INDICATION DURING FLAP RETRACTION. FLAP INDICATOR NEEDLES SPLIT AT 1 AND 5 POSITIONS. OVERHEAD ANNUNCIATOR INDICATED ALL LEADING EDGE DEVICES AT EXTENDED POSITIONS (NORMAL). FLIGHT RETURNED TO FIELD AT CLT AND LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANCE FOUND FLAP POSITION INDICATOR BAD. REPLACED INDICATOR PER MM 27-58-41. INSTALLED A NEW FLAP TRANSMITTER ON LEFT SIDE BUT WAS NO HELP. RE-INSTALLED ORIGINAL FLAP TRANSMITTER. OPERATIONAL CHECK OF FLAP POSITION SYSTEM CHECKS GOOD THROUGH ALL POSITIONS. WIRING INSPECTION AT TRANSMITTER WAS GOOD.