A power outage at the Hartsfield-Jackson Atlanta International Airport in the US state of Georgia has brought flights to a standstill, with scores of airplanes grounded at the world's busiest airport.
In a statement, the airport said it sustained a power outage shortly after 1 p.m. local time (18:00 GMT/UTC).
"The Federal Aviation Administration (FAA) has issued a ground stop for flights headed to ATL at this time, and many flights inbound to Atlanta are being diverted," the statement read.
The outage left hundreds of passengers stranded just before the busy Christmas travel season
The FAA added that a "ground stop" meant flights that were supposed to land in Atlanta were being held on the ground at their departure airports, meaning the outage has led to delays at other airports.
Various theories for the origin of the outage have circulated on social media, but the airport said "the cause of the incident remains under investigation."
Flightradar24, a site that monitors air travel data, said over 1,000 flights in and out of Atlanta were canceled for Sunday and that another 200 had been "proactively canceled for Monday."
Georgia Power said in a statement that it expects to have power restored at the airport by midnight.
Read more: The changing skies of Europe
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Air traffic booming around the world
Crowded skies
More passengers mean more aircraft in use. Asia's fleet for instance is set to be twice as big by 2035 to total about 17,000 planes. North America will have some 9,800 aircraft and Europe's about 7,900 (up from 4,610 today).
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Air traffic booming around the world
Pilots in high demand
More planes in use mean more pilots are needed. Boeing reckons that about 617,000 new pilots will have to be recruited by 2035, particularly in Asia. On top of that, there's a need for 679,000 new maintenance staff and 814,000 additional flight assistants, says Boeing. Airbus sees a need for 560,000 new pilots.
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Air traffic booming around the world
The biggest hubs
Europe's biggest hubs in terms of passenger numbers are London Heathrow, Paris-Charles De Gaulle and Frankfurt in Germany, handling between 73 million and 64 million passengers. In Frankfurt, over 2 million tons of cargo were dealt with in 2014. The world's largest airport in Atlanta in the US boasted 100 million passengers in 2015.
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Air traffic booming around the world
Budget airlines to the rescue
Growth at German aviation hubs is not so much a result of booming German carriers. It's more about the strength of foreign airlines. The number of German carriers' take-offs has shrunk steadily over the past six years. By contrast, no-frills competitors such as Ryanair and Easyjet have seen a 14-percent rise in take-offs from German airports.
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Air traffic booming around the world
Largest strike action in history
German flagship carrier Lufthansa was able to log 1.8 billion euros ($1.94 billion) in profit last year, beating results from a year earlier and despite a series of strikes crippling the airline. Industrial action organized by the VC pilots' union since 2014 has cost Lufthansa about half a billion euros. Meanwhile, management and pilots have struck a deal in principle.
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Air traffic booming around the world
The biggest earners
Aviation is a lucrative business, but some market players do better than others. While airlines tend to get a 4-percent yield on their invested capital, German airport operators and plane manufacturers secure between 6 and 7 percent. Doing even better are air traffic control, haulers and booking services, which - says a McKinsey study - can get as much as 20 percent in proceeds from capital.
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Air traffic booming around the world
What's in store for us?
Here you are: beds for tired travelers, massagers and generous legroom, childcare services and a bar plus shower cabinets to make you feel alright. This is what passengers hope they will see on board in the not-too-distant future. Should this become a reality, passenger numbers are bound to soar further.
Author: Insa Wrede (hg)
Passengers stranded
The FAA said that although its flight tower at the Atlanta airport was operating normally, equipment in the terminals was not working.
Stranded passengers have posted pictures and videos on social media showing hundreds of people waiting in lines and walking through darkened hallways at the massive airport.
Some were reporting that people were not yet being allowed to leave the airport or were stuck sitting on idling planes.
"A lot of people are arriving, and no one is going out. No one is saying anything official. We are stuck here," Delta airlines passenger Emilia Duca told The Associated Press. "It's a nightmare."
The power outage hit just days before the start of the Christmas travel rush.
rs/cmk (AP, AFP, Reuters)