In what direction must the operating handle be rotated to open the GSD on the CRJ 200?

The correct answer is that the operating handle must be rotated clockwise to open the GSD (Ground Service Door) on the CRJ 200. This design choice is consistent throughout various aircraft systems where a clockwise motion is often used to indicate an opening action. In aviation, standardizing such operations helps ensure familiarity and safety for those interacting with the aircraft systems.

In this case, understanding the rotation direction is crucial for maintenance personnel or ground crew members who need to perform their tasks efficiently. The clockwise motion makes it clear and predictable, aiding in operational safety by minimizing the potential for incorrect manipulations that could lead to issues during service or maintenance activities.