fp.

A national radar outage would do it. This is actually a bigger story. Everyone needs it to forecast. But it doesn't seem to actually be offline. So I don't think it was a long outage.

jmclnx•10m ago

I think I remember seeing an article here about air traffic controller systems moving off of 3.5" diskettes. Related ?

neko_ranger•7m ago

"upgrade to cds. make no mistakes"

Jtsummers•7m ago

Could be if that's the system that failed, but they haven't upgraded/replaced that system yet. Just awarded some contracts to do so.

gosub100•2m ago

No, my guess is cyber attack from a state we've been making false accusations against.

promptsupporter•16m ago

Something with frequency of ATC signals?

jmclnx•7m ago

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

ChrisArchitect•6m ago

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

United857•6m ago

Is this the first such case since 9/11?

KPGv2•4m ago

no, there was one in 2023 when a pilot notification system went down

dole•4m ago

No.

"January 11, 2023. All U.S. departing flights were halted for several hours after a computer outage crashed the FAA's Notice to Air Missions (NOTAM) pilot notification system"

9/11, 2023 and today are the only three times.

Jtsummers•3m ago

9/11 was different, that also required all planes to land, more or less, as quickly as possible and not continue to their destinations (unless that was timely, I suppose). This one is a departure ground stop, no more planes going up. Planes in the air haven't been ordered to land yet.

dmitrygr•4m ago

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