As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 5496 - STL- ON CLIMB-OUT, AUTOPILOT FAILED AFTER YOKE (PRIMARILY ROLL) WAS ERRATIC. FLIGHT DIRECTOR WAS ACTING ERRATIC. NUMEROUS VERBAL PROMPTS (SUCH AS "BANK ANGLE", "PULL UP". "SINK RATE" AND "WINDSHEAR") WERE HEARD CONTINUOUSLY. MAINTENANCE REMOVED AND REPLACED THE AHRS COMPUTER.