As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A HYBRID AUTOLAND/HGS CAT III APPROACH, EVERYTHING NORMAL UNTIL ABOUT 50 FEET RECEIVED AN APPROACH WARNING MESSAGE. DISCONTINUED AUTOLAND. ACFT GROUNDED. ACCOMPLISHED BITE LIBRARY TEST IAW AMM 22-11-00-740-806, ALL LIBRARY TESTS (CHANNELS A & B), FCC LRU REPLACEMENT TEST, IAW AMM 22-11-33-400-801, SUBTASK 22-11-33-740-001. HGS OPS TEST SECTION 500 HGS-4000 SMM 34-36-00. ACCOMPLISHED APPROACH SURVEY. ALL REQUIRED TESTS PASSED.