Flight Crew Multiengine; Flight Crew Flight Instructor; Flight Crew Commercial; Flight Crew Instrument
Flight Crew Last 90 Days 100; Flight Crew Total 4000; Flight Crew Type 40
Human-Machine Interface; Distraction; Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Weather / Turbulence
Aircraft; Human Factors; Weather
Attempted to load approach into Garmin 3000 touchscreen controller. Slight turbulence caused pilot to touch load/activate button. This single action changes navigation mode; auto pilot guidance; and flight plan screen. Several pilot actions are required to undo the situation; allowing aircraft to leave the designed STAR until either reverting to manual control or completing to navigation system corrections. Perhaps a function that undoes the last command would be valuable.
Pilot reported turbulence caused them to activate the wrong button on their Garmin 3000 navigation screen which caused them to lose their current navigation modes and flight plan screen.