What was found
RUDDER TRIM RUNAWAY DURING CRUISE FLIGHT. RUDDER TRIM ACT CIRCUIT BREAKER F7 PULLED AS DIRECTED BY CHECKLIST. INTERROGATED THE CDS: NO FAULTS NOTED, NO HISTORY FOUND. REPLACED THE RUDDER TRIM SWITCH IAW AMM 27-22-11-000-801, 2722-11-400-801. C/W AN OPS CK OF THE AILERON TRIM SYS IAW AMM 27-13-00-710-802. OPS CK'S NORMAL. ACFT OK FOR CONTINUED SERVICE, COMPLETED FREEDOM OF MOVEMENT CHECK, ENSURED FULL TRAVEL AND VERIFIED PROPER DIRECTION OF MOVEMENT. NO DEFECTS NOTED IAW GPM 9.2.