Who is typically responsible for opening the MCD during normal operations on the ERJ 175?

The Forward Flight Attendant (FWD FA) is typically responsible for opening the Main Cargo Door (MCD) during normal operations on the ERJ 175. This task falls within the responsibilities assigned to cabin crew members, where the FWD FA plays a crucial role in ensuring the safe and efficient boarding and deplaning processes.

In normal operational procedures, the FWD FA is positioned to manage passenger flow through the forward entry door and will often coordinate with the flight deck and ground crew when it comes to securing the aircraft and handling doors upon arrival and before departure. The FWD FA's knowledge of the aircraft systems and procedures enables them to efficiently carry out tasks like opening the MCD, which is essential for unloading luggage and cargo safely.

While the other options refer to various roles that are inherently important for aircraft operations, they do not align with the standard practices for opening the MCD. The AFT FA typically manages the rear cabin area and is not directly involved with cargo operations. The pilots focus on flying the aircraft and do not handle ground operations related to cabin access. Ground crew personnel assist but under the supervision of cabin crew, especially during the boarding process. Therefore, the FWD FA is the most accurate choice for this responsibility.