EASA AD US-2026-13-16
Navigation - 5G C-Band wireless Broadband Interference with Radio Altimeter System when operating in Canadian airspace - Amendment
The Navigation - 5G C-Band wireless Broadband Interference with Radio Altimeter System when operating in Canadian airspace - Amendment is a Federal Aviation Administration (FAA) airworthiness directive addressing interference issues affecting Boeing Model 757 and Model 767 airplanes. This directive responds to increased 5G Lower C-Band interference in Canadian airspace that compromises radio altimeter reliability and affects critical airplane systems during approach, landing, and go-around phases. It mandates revisions to the airplane flight manual to restrict certain operations relying on radio altimeter data when operating in Canadian airspace.