What is the primary function of the preflight inspection checklist for the crew on the ERJ 175?

The primary function of the preflight inspection checklist for the crew on the ERJ 175 is to verify equipment functionality and safety. This checklist is crucial as it ensures that all the systems and components of the aircraft are operating correctly before takeoff. By systematically reviewing each item on the checklist, crew members can identify any potential issues that could affect the safety of the flight. This process is vital for maintaining airworthiness and ensuring that the aircraft is ready for a safe journey.

While aspects related to passenger comfort, on-time departures, and preparation for flight attendants' roles are important in the overall operation of a flight, they are secondary to the fundamental goal of ensuring the safety and functionality of the airplane through the preflight inspection. The focus of the checklist is to detect malfunctioning equipment or hazards that could impact flight safety, which is essential for protecting both the crew and passengers during the flight.