Flights halted at airports across US due to ATC communications problems

The Federal Aviation Administration grounded all flights nationwide Friday afternoon because of communications problems at regional air traffic control centres. The FAA notice said the ground stop was being imposed "due to extraordinary circumstances and for reasons of safety." Transportation Secretary Sean Duffy said there is a communications issue affecting the 22 regional air traffic control centres that direct planes en route between airports nationwide. He said FAA technicians are investig…