Does anyone have any insight on this? Currently at LGA and they’re continuing boarding procedures, but they’re not giving us any updates otherwise.

Is this the first such case since 9/11?

Some more discussion on source: https://news.ycombinator.com/item?id=50489641

Related:

https://news.ycombinator.com/item?id=50489641

Something with frequency of ATC signals?

earlier discussion: https://news.ycombinator.com/item?id=50489641