People pass through Salt Lake City International Airport on Wednesday. The outage of a key safety system led to thousands of flight delays and cancellations in the U.S. Rick Bowmer/AP
Rick Bowmer/AP
Flights across the U.S. slowly resumed Wednesday after a nationwide ground stop by the Federal Aviation Administration, stemming from the outage of a crucial piece of technology.
The failure of the Notice to Air Missions system, or NOTAM, caused airlines to cancel more than 1,300 flights, and delay nearly 10,000 more,
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