[jandrese]

Airline accidents almost never have a single cause. It requires multiple failures to align before you have disaster. Malfunctioning radio altimeters could be one of those factors.

That said, this is Boeing's fault. They need to clean up their act ASAP, and it seems like they've been banking on the FCC covering up their mess and are now running around with their hair on fire.

A reasonable stopgap may be to simply not allow 5G towers to use the frequencies ranges in question within some radius of an airport (20 miles?) for a few years until Boeing fixes the problem.

[jreese]

A 20 mile radius of any airport likely covers a significant portion (60-70%) of all urban/suburban population. They might as well just give up on that spectrum at that point.