What does an alternate position line illustrate in aircraft drawings?

An alternate position line is used in aircraft drawings to indicate the different positions that a component can occupy during operations or maintenance. This type of line is particularly useful for showing how parts may be moved or repositioned, either during assembly or when the component is being functionally tested.

By illustrating the alternate position of a part, these lines help mechanics and engineers visualize how components interact when they are in a different state or location than their primary position. This is vital for understanding the operational aspects of the aircraft and ensuring that assembly and maintenance procedures are carried out correctly.

Understanding the context of alternate position lines is crucial for anyone involved in aircraft production or maintenance because it directly influences how components are serviced or installed, thus impacting safety and performance.