When is the gust lock used on the ERJ 175?

The gust lock on the ERJ 175 is used before closing the door to prevent it from being pushed open by wind during the closing process. This mechanism is crucial for ensuring safety and proper operation. By engaging the gust lock, flight crew can securely manage the door in gusty or windy conditions, allowing for a smooth and secure closure without the risk of the door being affected by external forces. This demonstrates a proactive approach to handling potential challenges associated with fluctuating weather conditions while on the ground. The need to ensure the door closes safely underscores the importance of using the gust lock in specific pre-closure scenarios.