Some aircraft are still equipped with altimeters prone to failure under certain worst case scenarios. The administrator of the federal aviation authority wrote a letter to the trump administration back in december 20 20, seeking a stay on the s band auction. However, the story goes that the letter never made its way to the tele communications authority and the auction went off without a hitch. Why? Well, we don't know. Once again, it seems that the us. Government failed to broker a peace deal between the f c c and the f a a.