What is a fairlead?

• A. A device to prevent a cable from rubbing on the aircraft structure.
• B. A guide for securing cargo
• C. A type of fastener used on wing tips
• D. A sensor that monitors cable tension

Answer: (A)

A fairlead is a device that guides a cable, rope, or hose along a defined path while protecting it from damage as it passes over or around aircraft structure. Its main job is to prevent rubbing and wear on the material by providing a smooth, rounded surface or a bearing-supported groove, especially where the cable must change direction or run along the skin. This prevents fraying and structural damage that could be caused by sharp edges or contact with surfaces. It’s not used to secure cargo, it’s not a fastener, and it’s not a sensor—those tasks are handled by tie-downs, fasteners, or tension-monitoring devices, respectively.