🔻CBS report: The communication disruption was caused by a network update.
Multiple sources told CBS News, the BBC's media partner in the US, that a technical glitch that led to the suspension of flights across the country was caused by an update to a dedicated communications network that connects the US air traffic control system.
The network, which CBS said was run by L3Harris, relaunched after the update but later shut down.
The company announces on its website that it is a "major supplier" of communication systems for air security systems, weapons and the most advanced command and control platforms in the world.
L3Harris has yet to respond to the BBC's request for comment.