As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT THE AP FAILED ON THE F/O'S SIDE, FOLLOWED BY A FLIGHT DIRECTOR FLAG ON THE F/O SIDE. THE 1 AMP CB ON AHRS 2 WAS POPPED. REPLACED AND SECURED TCAS PROCESSOR. OPS CHECKED OPERATION OF AUTOPILOT SYSTEM ON GROUND. ALL CHECKS GOOD AND CB'S REMAINED SET.