What was found
ABORTED TAKE-OFF FOR RUDDER JAM/DIFFICULT DIRECTIONAL CONTROL. THE AIRCRAFT WAS GROUNDED DUE TO THE EVENT. MX PERFORMED YAW DAMP SYS TEST AMM 22-63-00-710-001-A, ADIRS SYS TEST AMM 34-14-00-740-004-A, AFS TEST AMM 22-91-00-710-001-A, AUTO CHANGEOVER FUNCTION AMM 22-60-00-710-002-A, RUDDER TRAVEL LIMITING FUNCTION AMM 22-61-00-710-001-A, AND ALL TESTS PASSED. FLIGHT CREW PERFORMED A HIGH SPEED TAXI AND AN OCF, BOTH SUCCESSFUL.