Editing Foreign object damage (section)

===Vehicle tire track-in===
Debris is often trapped in the treads of tires from vehicles coming onto an airfield. Types of debris trapped in a vehicle tire can include rocks, mud, stones, loose hardware (screws, washers, bolts, etc.) and many other forms of small materials. These can be crew and fuel trucks, maintenance vehicles and many others that inadvertently bring debris to a [[flight line]] and deposit it there. These types of FOD are very difficult to track and manage once they are introduced onto the airfield. A jet engine intake, engine blast, and [[propeller]] or [[helicopter rotor]] draft then can pick up the debris easily. This material, once loose around operational aircraft, can lead to serious safety concerns, including personnel injury and equipment and property damage.