What was found
DURING PRACTICE HYBRID APPROACH, TRACKING & ALIGNMENT WAS GOOD UNTIL APPROXIMATELY 10-15 FEET AGL. AT THAT POINT THE ACFT BEGAN DRIFTING TO THE RIGHT OF CENTERLINE. AT TOUCHED DOWN, THE ACFT WAS WELL RIGHT OF THE RUNWAY CENTERLINE & CONTINUED DRIFTING RIGHT. DISENGAGED AUTOPILOT, STILL DRIFTING RIGHT, THE WHOLE FUSELAGE WAS RIGHT OF CENTERLINE. WINDS WERE APPROXIMATELY 190 DEGREES AT 3 KNOTS. PROTECTED AREA WAS CLEAR. ACFT GROUNDED. PERFORMED A FAULT REVIEW (BITE GROUP 20) AND A LAND VERIFY TEST (BITE GROUP 49) IAW AMM 22-00-01/201. ALL TESTS NORMAL, NO FAULTS NOTED. PERFORMED A HGS SYSTEM TEST IAW SMM 34-36-00. ALL TESTS NORMAL. PERFORMED A HGS FAULT REVIEW/ISOLATION TEST IAW SMM 34-36-00, FOUND FAULT 'ILS ANOMALY DETECT.' PERFORMED AN ILS/MMR DFCS LRU REPLACEMENT TEST (BITE GROUP 38), AND A HGS SENSOR TEST FOR MMR/ILS IAW SMM 34-36-00. ALL TESTS NORMAL. ACFT REMAINS CAT IIIA AUTOLAND & HGS QUALIFIED.