NEW DELHI — Air India warned passengers flying to and from the United States on Friday to brace for severe schedule disruptions after an unprecedented telecommunications blackout forced the US Federal Aviation Administration to ground domestic departures nationwide.
Air traffic froze in its tracks.
Although the FAA lifted the nationwide ground stop after emergency interventions, terminal ramps from New York to San Francisco remain choked with aircraft out of position, triggering cascading delays across long-haul international corridors. Air India urged all US-bound passengers to verify their flight status before traveling to airports, warning that turnaround times for wide-body transatlantic operations will take hours to stabilize.
The crisis erupted early Friday when voice and digital communication channels went dark across all 22 regional air route traffic control centres—the nerve centres responsible for guiding aircraft cruising at high altitude between airports. FAA officials confirmed the extraordinary decision to suspend departures was taken purely for flight safety.
Technicians traced the trigger to failing network routers, with the technical breakdown originating at Chicago Midway International Airport before racing across federal aviation data pipelines.
Different air traffic centres experienced the blackout in mismatched waves, leaving sector controllers temporarily unable to coordinate airspace handoffs under standard protocols. In initial crisis huddles, aviation administrators struggled to isolate why redundant communications failed simultaneously.
The decision was taken due to extraordinary circumstances and for reasons of safety.
Federal Aviation Administration
US Transportation Secretary Sean Duffy confirmed federal technicians are conducting an exhaustive forensic audit into the network failure. Airborne flights already aloft when controllers issued the order received clearance to proceed to their destinations and land, with regional hubs managing arrivals on a case-by-case basis under emergency separation buffers.
US Homeland Security Secretary Markwayne Mullin stated the outage stemmed directly from telecommunications infrastructure faults, adding investigators found zero evidence pointing to a coordinated cyber assault or foreign sabotage. Still, federal agencies are probing the integrity of the private data lines leased by federal controllers.
| Disruption Metric | Official Event Parameter |
|---|---|
| Scope of Ground Stop | Nationwide (All US Commercial Departures) |
| Facilities Disabled | All 22 Regional Air Route Traffic Control Centres |
| Suspected Technical Epicenter | Core Network Routers at Chicago Midway International Airport |
| Airborne Flights Protocol | Diverted or Landed on Case-by-Case Basis |
| Status of Order | Ground Stop Rescinded; Cascading Delays Ongoing |
Friday's nationwide ground stop marks only the second general flight freeze since the terror attacks of September 11, 2001. The only comparable peacetime disruption occurred in January 2023, when a corrupted database file crashed the FAA's Notice to Air Missions system, stranding thousands of aircraft.
Air India stated operations teams are actively monitoring aircraft rotations and coordinating with US station managers, with further passenger advisories scheduled as airport slots realign.