As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A-AUTOPILOT ENGAGES FOR 2 SECONDS THEN DISENGAGES WITH VISUAL AND AURAL ALERTS. B-AUTOPILOT WORKS FINE. ACFT GROUNDED. ACCOMPLISHED DFCS BITE REF FIM 22-11, TASK 801. NO FAULTS IN CURRENT STATUS FAULT HISTORY FOR LEG 1 LOGGED CHANNEL A ELEVATOR SYNC INV, 4 SEC. ACCOMPLISHED LRU REPLACEMENT TEST DFCS BITE GRP 47 TEST PASSED. PERFORMED DFCS BITE GRP 49 LAND VERIFY TEST IAW AMM 22-11-00 AND HGS SYS TEST IAW AMM 34-36-00, ALL TESTS PASSED.