According to the FAA, some Boeing 717, 737, 747, 757, 767, 777, MD-10/-11, and Airbus A300, A310, A319, A320, A330, A340, A350, and A380 models use one of five approved safe altimeters. At first, 777s were not considered safe, and many flights using this plane have been canceled. Now, 777 flights are back on schedule.
On the other hand, the FAA warns that Boeing 787-8, 787-9, and 787-10 airplanes’ altimeters may not be safe when exposed to C-Band 5G.
Without going into any more detail, however, the FAA warned yesterday that only about 62% of the US commercial airplanes are safe to perform low-visibility landings at airports where C-band 5G has been deployed.
Faye Malarkey Black, head of the Regional Airline Association (which represents smaller, regional airlines) tweeted that “0% of the regional airline fleet has been cleared to perform low visibility landings at #5G impacted airports if/when weather drops below minimums. Today’s fair weather is saving rural America from severe air service disruption.”
The FAA claims it is “reviewing testing data for altimeters used in regional jets.”
Article source: https://www.zdnet.com/article/whats-what-with-5g-and-airport-safety-faq/#ftag=RSSbaffb68