What risk is associated with opening the airstair in winds exceeding 40 knots?

Opening the airstair in winds exceeding 40 knots poses a significant risk of damage due to the high forces exerted by the wind. When the airstair is deployed in such high wind conditions, the rapid airflow can cause the airstair door to swing violently or become difficult to control. This intense pressure can lead to mechanical failure or physical damage to the door's hinges, support structures, or the airstair itself.

It is critical to adhere to operational guidelines that typically specify wind limitations for the safe operation of airstairs. This ensures that the equipment remains functional and safe for passengers and crew. Understanding the risks associated with high winds helps prevent potential mishaps and maintains the integrity of the aircraft's systems.