1995年11月，当一架美利坚航空公司的B757飞机坠落在哥伦比亚的山区时，未等找到159名遇难者的尸体，废弃航材的非法收集者就潜入了出事地点。他们运用复杂的工具，将飞机的反推装置，驾驶舱控制系统和其他昂贵的航材从破碎的飞机上拆下，然后用直升机将这些航材运离陡峭的山崖 In November 1995, when an American Airlines B757 crashed in the mountains of Colombia, the bodies of 159 victims were not found, and illegal collectors of abandoned aviation materials sneaked into the accident site. They use sophisticated tools to remove the aircraft’s thrust reversers, cockpit control systems and other expensive materials from the broken planes, and then use helicopters to transport the materials away from the steep cliffs.