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FAA issues airworthiness notification related to 5G and Boeing 787 aircraft

The Federal Aviation Administration (FAA) has issued an airworthiness notification regarding the 5G network deployment and the Boeing 787 aircraft family. According to the FAA, in the airworthiness notification released January 14, 2022, operators of Boeing 787s are required to take additional precautions when landing on wet or snowy runways at airports where 5G C-band service is deployed. ( More...

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So, here's the difference between 5G in the U.S. and in other countries, such as in Europe.
5G in the U.S. is double the power that other countries use. The U.S. is using frequencies between 3.7-3.98 GHz. Other countries use the slower 3.4-3.8 GHz. So it’s a bit farther removed from what LRRA uses, 4.2-4.4 GHz. Less chance of interference. Also, radio altimeters use low power emissions, vs 5G using high power emissions. It’s like standing in a room listening to someone whispering, while the stereo is blaring away. Other countries, reduce their power even more near airports and tilt the array away at an angle from the flight path. The original U.S. plan doesn't do that. The technical community has said from the beginning, this was going to be a problem.

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tb1011 2
Crt Mori -1
Is it not strange that there is a single model from a single manufacturer that did not pass the verification? I mean after all 5g is nothing new with frequencies/strength and airplanes should be shielded enough to avoid that.
Jason Holmes 2
The issue isn’t shielding…that was part of the original (and ongoing) debate about wireless overall. This specifically is low power CBand used for navigation being interfered by higher power 5G in nearby frequencies.


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