EMB-505 / Phenom 300
Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation - Altitude Crossing Restriction Not Met; Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Clearance
Flight Crew Landed As Precaution; Flight Crew Returned To Departure Airport; General Flight Cancelled / Delayed
Aircraft; Human Factors
Captain/PF (Pilot Flying) requested 2000 ft. be selected in altimeter for the departure. After takeoff and climbing through 1000 ft.; PF requested autopilot to be engaged. After engaging autopilot and approaching 1500 ft.; I (Pilot Monitoring) noticed that the climb rate was not decreasing and we would break the mandatory crossing restriction. I then noticed that VNAV was not armed for the climb in order to capture 1500 ft. I notified PF of the climb above 1500 and also noticed he was fighting with the controls. I then noticed the trim had been at full nose UP; notified PF of this and he disconnected the autopilot and manually trimmed the pressure off and hand flew from that point on. For a brief moment I saw a CAS message that included '...TRIM...' but was distracted by ATC and when I looked back for the CAS message it had disappeared. After brief discussion; we both agreed that advising ATC and returning to [departure airport] was the best idea.
EMB-505 F/O reported returning to departure airport after experiencing stabilizer trim issues.