What was found
AFTER TAKE-OFF AND RAISING THE LANDING GEAR "RUD LIMIT FAIL B" CAS MESSAGE CAME ON. FAILED AT 87 PERCENT. REPLACED FAILED LWR RUDDER LIMITED ACTUATOR INSTALLED A NEW UNIT, RIG AND OPS CK GOOD IAW MM CH 27-20-00 GAINED ACCESS TO LIMITER IN VENT. STAB CONNECTED TEST BOX RAN LIMITER SEVERAL TIMES NO DEFECTS NOTED. REMOVED TEST BOX AND RECONNECTED LIMITER, TURNED POWER ON, NO RUDDER LIMIT FAIL B CAS MESSAGE NOTED. OK TO CLOSE ACCESS C/W RUDDER CONTROL SYS LIMITER TEST. HOOKED UP AIR DATA TEST SET AND RUDDER RIG BOARDS. OPS CHECKED GOOD IAW MM 27-20-00 CHECKED B SIDE ACTUATOR AND IS A -6 INSTALLED NEED TO REPLACE WITH A -12 LIT. PART IN STOCK. RECOMMENDED REPLACED RUDDER LIMITER C/W TIMED CHECKS IAW MM 27-20-00. REMOVED RTG BOARDS. OK TO REINSTALL ACCESS PANELS REINSTALLED ACCESS PANELS.