As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND RUDDER TRIM INOPERATIVE DURING "A" AND "B" INSPECTION OP CHECKS. FOUND CORROSION ON RUDDER TRIM CONTROL SYS WIRING LINE FILTER, REF. DESIGNATOR C004. CLEANED AND REINSTALLED WIRING CONNECTIONS ON LINE FILTER ASSY. RUDDER TRIM SYS FUNCTIONAL CHECKS NORMAL.