What was found
AFTER LANDING IN CAK, THE NOSE GEAR AND MAIN GEAR INDICATION WAS NORMAL AND GREEN. HOWEVER, THE GEAR HANDLE WAS FLASHING AND THE AURAL HORN WAS HEARD. MAINTENANCE INSPECTED AND FOUND THE DOWN LOCK PROXI SENSOR TO BE OUT OF GAP .030 ON THE BACK SIDE. THE AIRCRAFT WAS THEN FERRIED TO DAY. MAINTENANCE THEN INSPECTED AND REPLACED THE SHIMS IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 32-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.