As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INVESTIGATED FLIGHT CREW REPORT OF ROLL TRIM NOT RESPONDING TO SELECTED INPUTS AFTER 10 DEGRESS FLAPS SELECTED ON APPROACH. ROLL TRIM OPERATING NORMAL AFTER LANDING. FOUND INTERMITTENT OPERATION OF A194 ROLL TRIM PC BOARD ASSY. REPLACED A194 PC BOARD WITH NEW PN BOARD, OPS NORMAL. RECOMMEND MFG INVESTIGATE WHETHER ANY CERTAIN PN OR MFG DATE RANGE CAUSING HIGHER THAN NORMAL SIMILAR FAILURES IN THIS SYS.