aviation administration. we re from us trade by the faa s ability to do what nearly 40 countries have done. with over launching our advanced 5g services elsewhere as planned. let s get more from pete muntean. reporter: the 5g network was supposed to be rolled out tomorrow, the changes coming at the 11th hour. at&t saying they will voluntarily turn off some of the 5g towers near commercial airports, certain airports in particular though it doesn t list which ones with. what does tissue here, airlines say, is that the 5g cell spectrum is so close to the frequency of a specific type of instrument that s critical to the safety of flight called a radar altimeter, sends a beam down to the ground and gets bounced back to the plane to get a hyper accurate reading to see how high the plane is abovthe ground. it s critical for commercial airlines, cargo planes, for helicopters, especially in low visibility conditions when seconds really count very low to the ground. at&t has said it will pause