What was found
ON APPROACH F/O DISENGAGED AUTOPILOT, FOUND PITCH TRIM INOPERATIVE, NO RESPONSE. SWITCHED CONTROL TO CAPTAIN, LANDED NORMALLY. INTERROGATED CDS, FOUND FAULT CODE "EL TRIM SW FAIL". R & R ELEVATOR TRIM SWITCH ON F/O'S HANDWHEEL, IAW AMM TASKS 27-32-18-000-801, 27-32-18-400-801, OP'S CHECKED GOOD, NO FAULTS IN CDS, NO OTHER DEFECTS NOTED. RETURNED TO SERVICE.