As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB AND DESCENT FLIGHT DIRECTOR V-BARS BECAME ERRATIC AND AP FOLLOWED ERRATIC MOVEMENTS. BOTH WORKED NORMALLY DURING CRUISE. REPLACED CAPTAIN'S AHRS COMPUTER AND REPAIRED WIRING TO NR 2 DPU FAN CONNECTOR. BOTH AUTOPILOTS AND FLIGHT DIRECTOR SYSTEMS OPERATE NORMALLY PER MM 22-11-00.