What was found
DURING EACH LEG, THE RUDDER TRIES TO SPLIT AT VARIOUS SPEEDS AND ALTITUDES. INSPECTED RUDDER SYSTEM FOR LOOSE TABS OR COMPONENTS, NONE FOUND. COULD NOT DUPLICATE ON GROUND, ALL WORK DONE IAW MM 27-20 AND 27-30-143. NO FAULTS NOTED. ALL OPS CHECKS NORMAL, A/C OK FOR SERVICE.