The word 'some' indicates that not every plane with the mentioned model numbers has an approved altimeter.

These airplanes are now authorized 'to perform low-visibility landings at airports where wireless companies deployed 5G C-band,' the FAA said. 'Airplane models with one of the five cleared altimeters include some Boeing 717, 737, 747, 757, 767, 777, MD-10/-11 and Airbus A300, A310, A319, A320, A330, A340, A350 and A380 models,' the FAA said in a statement issued shortly after 2 pm EST today. The FAA has been granting Alternate Means of Compliance (AMOCs) to operators with altimeters that are safe to use. 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. 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. 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.

Boeing 777 news today