What was found
AT FL430 THE PTRIM NML FAIL AMBER CAS MESSAGE PRESENTED (PICTURE ATTACHED). THE PITCH TRIM INDICATOR ON THE MFD INITIALLY HAD AN AMBER X AND THEN CLEARED. THE CAS MESSAGE REMAINED SUSTAINED THROUGH THE REMAINING PHASES OF FLIGHT. WE COMPLIED WITH THE QRH PROCEDURE. REMOVED FAULTY PITCH TRIM ACTUATOR PN: 467500-1003 SN:0778 AND INSTALLED A NEW PITCH TRIM ACTUATOR PN:467500-1003 SN:0990. ALL WORK DONE. OPS CHECKS GOOD. REF AMM 27-41-01.