What was found
FLT 5574 - RIC - DURING LANDING AT 50 FT ALTITUDE, THE CREW REPORTED THAT THE PLANE YAWED TO THE LT WITH A 15-20 DEGREE ROLL TO THE LT. NO WIND GUST REPORTED. MAINTENANCE PERFORMED AN OPERATIONAL CHECK OF THE AUTOPILOT SYSTEM AND PERFORMED A DETAILED VISUAL INSPECTION OF ALL THE FLIGHT CONTROL SURFACES. IN ADDITION, THE AIRCRAFT HAS HAD A MAINTENANCE CHECK FLIGHT. NO DEFECTS NOTED DURING ALL PHASES OF INSPECTION AND FLIGHT CHECK. (A)