The FAA issued an airworthiness directive (AD) on Tuesday prohibiting Boeing 747-8, 747-8F and 777 aircraft from landing at airports where Verizon and AT&T’s 5G C-Band wireless broadband networks could cause radar altimeter interference. The AD requires airplane flight manual (AFM) revisions to add limitations prohibiting dispatching or releasing affected aircraft “to airports, and approaches or landings on runways, when in the presence of 5G C-Band interference as identified by Notices to Air Missions (NOTAMs).” As previously reported by AVweb, the FAA has published more than 1,400 Notices to Air Missions (NOTAMs) related to potential 5G interference with radar altimeters.
This is a companion discussion topic for the original entry at https://www.avweb.com/flight-safety/faa-regs/faa-issues-5g-ad-for-boeing-747-8-777