In what sequence will the escape slide deploy during an emergency on the ERJ 175?

The correct sequence of escape slide deployment during an emergency on the ERJ 175 is to first arm the slide and then allow it to open. When the slide is armed, it becomes ready to deploy when the emergency exit is opened. This ensures that the slide is equipped to inflate properly when needed for passenger evacuation. The "armed" state indicates that the deployment mechanism is engaged and ready for activation, while "opened" refers to the physical act of the slide deploying when the exit is opened.

Understanding this sequence is crucial for ensuring a safe and efficient evacuation during emergencies, as it eliminates the possibility of premature slide deployment or malfunction. Proper training reinforces the importance of these steps, making it clear that the slide must be armed first to be functional when the emergency exit is opened.