As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN ENGAGING A AND B AUTOPILOT BOTH YOKES WOULD BUMP AND KICK 1 UNIT LT ON CONTROL WHEEL. ACFT GROUNDED. DFCS LAND VERIFIY GRP 49 FAILS TEST 49.35. DUAL TEST ALL POS FAIL, AIL POS SENSOR 1, MS622.11145. R & R AILERON POSITION SENSOR IAW MM 22-11-29 PERFORMED ADJUSTMENT TEST AND POSITION SENSOR TEST, CHECKED GOOD. PART INFO ON HOLD.