Abstract: Protective devices are provided subjacent to the filler port within an aircraft's wing fuel tank so as to protect the lower wing skin from being struck by a nozzle associated with refueling equipment. The protective devices for an aircraft fuel filler port may be associated with an aircraft wing tank and preferably include a generally cylindrical side wall structure and a hemispherical bottom apertured wall joined to an annular bottom edge of the side wall. The hemispherical bottom apertured wall may include a screen mesh, but apertured hemispherical cup-shaped members may also be employed and achieve equivalent benefits.