What is the purpose of using safety wire in aircraft maintenance?

The purpose of using safety wire in aircraft maintenance is primarily to prevent fasteners from loosening due to vibration and motion during flight. Aircraft are subjected to various forces and vibrations while operating, which can cause fasteners to loosen over time. Safety wire acts as a locking mechanism, securing the fasteners in place by connecting them with wire that is twisted around their heads or in a manner that restricts movement. This ensures that critical components remain securely attached, thereby enhancing safety and reliability throughout the aircraft's operation.

Using safety wire is a crucial practice to maintain the integrity of the aircraft's components, as loose fasteners can lead to serious mechanical failures. The effectiveness of safety wire in preventing loosening makes it an essential element in aviation maintenance practices, reinforcing the aircraft's structural stability during flight.