Where are the airstairs located on the aircraft?

Airstairs are typically integrated into the design of certain aircraft, allowing for direct boarding and deplaning of passengers without the need for an external stairway or jet bridge. The L1 door, which refers to the left front door of the aircraft, is often where airstairs are installed. This is the primary entry and exit point for passengers and crews on commercial jets, facilitating efficient boarding processes.

The placement of airstairs at the L1 door is in line with standard industry practices, as this location provides convenient access to and from the cabin, making it easier for passengers to access the aircraft. The other door options listed, such as L2, R1, and R2, typically do not feature airstairs as they are not primarily designated for passenger boarding in commercial operations. These doors may be utilized for service or crew access but are not the main entry point where airstairs are commonly found. Thus, identifying the L1 door as the location of airstairs reflects standard configuration across many aircraft types.