The failure of the US air traffic control system resulted from an attempt to modernize aging infrastructure, Transportation Secretary Sean Duffy said at a news conference.
According to him, the attempt to introduce modern technology burdened an "incredibly outdated system".
At the time of the failure, inconsistent information began to flow from the radars. "There was instability in communication and radar centers and towers throughout the country," the minister said.
The head of the department called on Congress to allocate funding to update the infrastructure.
"This is a non-partisan issue. This is an American issue. I need $50 billion," Duffy said.