https://arstechnica.com/tech-policy/2022/01/faa-clears-62-of-us-planes-for-low-visibility-landings-amid-5g-rollout/

The Federal Aviation Administration today said it has cleared 62 percent of US commercial airplanes to perform low-visibility landings at airports where AT&T and Verizon are deploying 5G on C-band spectrum this week.

Several international airlines previously canceled some flights to the US after Boeing issued a recommendation to not fly the 777 into airports where carriers are deploying 5G on the C-band. However, the 777 planes—or at least those that have altimeters capable of filtering out C-band transmissions—were on the FAA's new list of cleared aircraft. The FAA has been granting Alternate Means of Compliance (AMOCs) to operators with altimeters that are safe to use.