If the left starter is accidentally turned on during flight, what will happen?

When the left starter is accidentally turned on during flight, a L-DC Generator CAS message will illuminate. This occurs because the starter's operation while the engines are already running can create an electrical imbalance in the system. Specifically, the process of engaging the starter draws significant current and can interfere with the normal operation of the electrical systems, leading to alerts indicating a problem with the left DC generator or associated electrical systems.

The illumination of the CAS message serves as a warning to the pilot that the starter should not be engaged while in flight since it could have adverse effects on the aircraft's electrical and engine management systems. This emphasizes the importance of understanding the implications of equipment operation during flight and maintaining awareness of the cockpit indicators.