What was found
DURING CLIMB WITH THE AUTOPILOT ENGAGED THE AUTOPILOT DISENGAGED ALONG WITH ILLUMINATION OF THE A/P PITCH TRIM CAUTION MESSAGE 3 TIMES AFTER THE THIRD FAILURE THE PRIMARY PITCH TRIM WOULD NOT FUNCTION. PERFORMED HORIZONTAL TRIM SYSTEM FUNCTIONAL TEST AND RAN OUT SYSTEM WIRING FINDING NO DEFECTS. APPLIED HYDRO AND REPEATED ABOVE TESTS WITH NO DEFECTS NOTED. REF: G200 WO 27-40-11 AND G200 MM 27-40-00. SEE GAC SAV WO SC108327-6.1