Overview
- The FAA issued a nationwide ground stop just before 4 p.m. ET on Friday and lifted it around 8:15 p.m., pausing all departing U.S. flights for roughly four hours.
- Airborne planes were allowed to land and officials said no lives were at risk, though investigators from the FAA, DHS and other agencies continue to probe technical causes.
- Flight‑tracking services and airlines reported thousands of delays and cancellations, with FlightAware and other trackers showing several thousand canceled flights and many more delayed into Saturday.
- Administration leaders blamed overloaded legacy switches, routers and copper lines after recent upgrades, reporting that a telecommunications network overseen by a vendor is under review while the FAA’s new SMART AI vendor has denied responsibility.
- Officials urged Congress to fund a full modernization of air‑traffic communications, asking for tens of billions more to replace old equipment, and warned that recovery will be slow as carriers reposition planes and crews.