Separately, the FAA on Tuesday published an airworthiness directive on the Boeing 777 and 747-8 airplanes that interference may affect multiple airplane systems using radio altimeter data. The directive does not prevent any operations at nearly all large U.S. airports. The FAA has approved alternative means of compliance for the airplanes.
Ref: https://www.reuters.com/business/aerosp ... 022-01-25/
Ok, we have a concern that is specific to 777 and 787, but it doesn't prevent operations at "nearly all" large US airports?
Edit: Thread attached to https://twitter.com/ByERussell/status/1 ... 4411471873 suggests that the result might be to not allow 787/777 to be dispatched to certain airports with 5G towers nearby, and to figure out which ones those are you need to dig through the forest of ADs that speak to limitations of individual airplane/altimeter combinations.