As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
USING AUTOPILOT NR 2 ACCELERATING OUT OF 10K, AIRCRAFT FLEW IN A RIGHT BANK WITH NO RUDDER TRIM. TURNED OFF AUTOPILOT, COULD NOT TRIM THE AIRCRAFT INTO COORDINATED FLIGHT. THE FLIGHT DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE WITHOUT FURTHER INCIDENT. REPLACED THE NR 1 FAC IAW MM 22-66-34. ACCOMPLISHED OPS TEST OF RUDDER TRIM IAW MM 22-62-00-710-001-A, AFS IAW MM 22-96-00-710-001-A, AND LAND 3 CAPABILITY IAW MM 22-97-00-710-001-A. ALL TESTED GOOD. THE AIRCRAFT WAS GROUNDED.