What was found
DURING TAXI, THE AIRCRAFT HAD A FAILURE MESSAGE FOR THE AUTO FLT RUDDER TRV LIMIT SYS AND RETURNED TO THE GATE. MAINTENANCE PERFORMED A FAULT ANALYSIS IAW TSM 22-61-00-810-803, REPLACED THE TRAVEL LIMITATION UNIT IAW AMM 27-23-51 PB401, PERFORMED AN OPS TEST OF THE RUDDER TRAVEL LIMITING FUNCTION IAW AMM 22-61-00-710-001-A AND AUTO FLIGHT TEST IAW AMM 22-96-00-710-001-A, BOTH TESTS WERE NORMAL, THE AIRCRAFT WAS RETURNED TO SERVICE.