Schiavo: What's interesting to me about the ground stop is the FAA had also announced that it was about to deploy their new tool called SMART, to assist in managing air traffic across the entire national airspace system…
” In addition to the grounding of all flights at US airports due to a communications issue impacting air traffic control, the US Federal Aviation Administration had advised all airborne flights to circle along a predetermined routes, instead of landing due to “equipment outages”.”