What happened during the last nationwide grounding of flights?
Passengers wait in Terminal B at LaGuardia airport due to a nationwide ground stop due to a communication issue on Friday in Queens. Credit: Dawn McCormick
The last time the FAA grounded all departure flights happened in January 2024 when a computer system malfunctioned, touching off a cascading air traffic jam.
The system, Notice to Air Missions, is used to alert pilots of conditions on their flight path that include runway and taxiway changes. A pilot needs to review the notice before they can legally take off.
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