A carrying or guiding device for aircraft components, in particular for landing flaps arranged on an aircraft wing, including a carrier having a substantially U-shaped section with substantially parallel side walls, and a cover plate arranged at the open side. To minimize weight, facilitate manufacture and mounting, and provide sufficient strength, the carrier and the cover plate are made of fiber reinforced plastic, in particular of carbon fiber (CF) reinforced plastic. The connection between the carrier and the cover plate and any possible connecting elements is preferably provided by gluing and, possibly, by additional rivet or screw connections.