What was found
CLT - ON APPROACH INTO CLT, CREW REPORTED THE FLAPS SPLIT BETWEEN 15 - 25. NO ROLL WAS NOTICED, BUT FLAP GAUGE WAS SPLIT BETWEEN 15 - 25. DURING GO-AROUND AND RESOLVING CHECKLIST, FLAP GAUGE FLICKERED AND CORRECTED ITSELF. FLIGHT MADE A NORMAL LANDING. MAINTENANCE ACCOMPLISHED FLAP 25 UNIT X-DIMENSION CHECK. LEFT AND RIGHT WITHIN LIMITS PER MM 27-58-12. ACCOMPLISHED DFCS BITE. LEFT AND RIGHT FLAP POSITIONS WITHIN VALUES ON MCDU PER TSM 27-58-01. REMOVED AND REPLACED FLAP ASYMMETRY SHUT OFF RELAY R123. ACCOMPLISHED TRAILING EDGE FLAP POSITION INDICATOR SYSTEM TEST PER MM 27-58-01. CHECKS OK. AIRCRAFT OK FOR SERVICE.