Abstract: A heating mat is for use in a floor structure in an aircraft. The heating mat has a layered structure, with a plurality of layers firmly connected to one another, with a layer sequence. The layer sequence includes: a) a walkable protection layer having an unfinished floor covering material made of fiberglass-reinforced plastic or aramid fiber-reinforced plastic; b) an electrically conductive ground fault detection layer; c) an electrical insulation layer; and d) a flat electrical heating element having an electrically conductive heating varnish layer.