What was found
CREW REPORTED THAT THE AUTOPILOT TRIM FAILED IN FLIGHT. THE MAINTENANCE TEAM POWERED UP THE ACFT & ENGAGED AUTOPILOT, THE LT AUTOPILOT PITCH TRIM FAILED. REMOVED THE FCC CARDS FROM THE IAPS RACK, CLEANED & REINSTALLED CARDS. FAULT CLEARED, NO DEFECTS NOTED. GND CHECKS OK, ACFT RETURNED TO SERVICE.