Aircraft wing element comprising a rigid internal structure portion and a shield intended to be exposed to atmosphere during a flight of the aircraft, and also comprising at least the three following components which are superimposed between a surface (S 6) of the structure portion and the shield in the order of listing of said three components, starting from the structure portion, each component being in the form of a layer arranged parallel to the surface of the structure portion: - a first temperature sensor, comprising a first support film and at least one first track of a first electrically conductive material with an electrical resistivity value of the first material that varies as a function of a temperature of said first material, said first sensor being rigidly connected to the surface (S 6) of the structure portion; - an electrothermal mat forming a heating element, rigidly connected to the first sensor; and - an electrically insulating film, rigidly connected to the electrothermal mat by a first face (S 21) of said insulating film, and connected to the shield by a second face (S 22) of said insulating film, and capable of transferring heat between said first and second faces of said insulating film, characterized in that the wing element also comprises between the electrothermal mat and the insulating film: - a second temperature sensor, comprising a second support film and at least a second track of a second electrically conductive material, with an electrical resistivity value of the second material which varies as a function of a temperature of said second material, said second temperature sensor being rigidly connected to the electrothermal mat by a first face (S 31) of said second sensor, and to the insulating film by a second face (S 32) of said second sensor, and in that the second track forms meanders on the second support film, and an average rate of surface occupation of the second track on the second support film, evaluated in an area which contains several adjacent meanders of the second track, is at least equal to 50%. - a first temperature sensor, comprising a first support film and at least one first track of a first electrically conductive material with an electrical resistivity value of the first material that varies as a function of a temperature of said first material, said first sensor being rigidly connected to the surface (S 6) of the structure portion; - an electrothermal mat forming a heating element, rigidly connected to the first sensor; and - an electrically insulating film, rigidly connected to the electrothermal mat by a first face (S 21) of said insulating film, and connected to the shield by a second face (S 22) of said insulating film, and capable of transferring heat between said first and second faces of said insulating film, - a second temperature sensor, comprising a second support film and at least a second track of a second electrically conductive material, with an electrical resistivity value of the second material which varies as a function of a temperature of said second material, said second temperature sensor being rigidly connected to the electrothermal mat by a first face (S 31) of said second sensor, and to the insulating film by a second face (S 32) of said second sensor, and in that the second track forms meanders on the second support film, and an average rate of surface occupation of the second track on the second support film, evaluated in an area which contains several adjacent meanders of the second track, is at least equal to 50%.