The Federal Aviation Administration will require operators of Boeing 787s to take additional precautions when landing on wet or snowy runways at airports where 5G C-band service is deployed.
During the two-week delay in deploying new 5G service, safety experts determined that 5G interference with the aircraft’s radio altimeter could prevent engine and braking systems from transitioning to landing mode, which could prevent an aircraft from stopping on the runway.
The Airworthiness Notification requires crews to be aware of this risk and to adopt specific safety procedures when landing on these runways.
The directive affects 137 aircraft in the United States and 1,010 worldwide.