What type of latch is installed on the ERJ 175 flight deck door?

The ERJ 175 flight deck door is equipped with an electromechanical latch. This type of latch combines both electrical and mechanical components, providing enhanced security and functionality. The electromechanical latch allows for automated locking and unlocking mechanisms, which enables pilots to manage access to the flight deck without needing to manually operate a traditional latch.

This system is crucial for maintaining the integrity of the cockpit, especially considering modern aviation security requirements and protocols. The electromechanical design also often incorporates features such as status indicators, which inform crew members whether the door is securely latched or unlocked, contributing to overall flight safety and operational efficiency.

While mechanical, hydraulic, and magnetic latches are used in various applications, they do not offer the same level of integration and functionality required for the ERJ 175 flight deck door. Mechanical latches require manual operation, hydraulic latches are typically reserved for larger systems in aircraft, and magnetic latches are less common due to their limitations regarding security and reliability under operational conditions.