What was found
DURING AUTOLAND AND HGS APPROACH TO 16R AIRCRAFT BEGAN TO PITCH DOWN ABRUPTLY RT AT POINT IT SHOULD HAVE INITIATED FLARE. AUTOPILOT WAS DISCONNECTED AND ACFT LANDED MANUALLY. ACFT GROUNDED. ACCOMPLISHED DFCS FFR, GROUP 10 AND GROUP 11, ALL TEST PASSED AND NO FAULTS LOGGED. ACCOMPLISHED LANDING VERIFY TEST, GROUP BITE 49, ALL TEST PASSED, REF AMM 22-11-00/201. ACCOMPLISHED HGS FFR, NO FAULTS LOGGED. ACCOMPLISHED SYS TEST, ALL TEST OPS NORMAL AND ACCOMPLISHED SENSORS DATA TEST, ALL TEST OPS NORMAL, REF SMM 34-36-00. ACFT REMAINS CAT IIIA AUTOLAND AND HGS QUALIFIED, SCREW REFLECT SAME.