What was found
INFLIGHT AFTER TAKEOFF RIGHT HALF OF LEFT GREEN INDICATOR GEAR LIGHT REMAINED ILLUMINATED WITH ACCOMPANING STATUS MESSAGE LANDING GEAR MONITOR. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. NOT OVERWEIGHT. AIRCRAFT REMOVED FROM SERVICE. FOUND NOSE LANDING GEAR UP LOCK/DOWN LOCK SENSOR NUMBER 2 OUT OF LIMITS. ADJUSTED NUMBER 2 UPLOCK/DOWNLOCK SENSOR. SYSTEM GROUND CHECKED NORMAL OPERATION.