American Airlines flights across the U.S. were grounded Thursday because of -- what else -- computer problems. The worst hit airports were Dallas-Fort Worth, Chicago O'Hare and Miami.
On Twitter, the airline responded to customer complaints by saying it was working to resolve "technical issues."
@crankyflier Thanks so much for your patience, Brett. We’re working to resolve technical issues and apologize for the inconvenience.— American Airlines (@AmericanAir) September 17, 2015
The FAA said the airline had requested a ground stop for all its traffic in and out of the three airports, citing "computer issues."
FAA Air Traffic Alert: @AmericanAir requested a ground stop for all of their traffic in and out of DFW/ORD/MIA due to their computer issue.— The FAA (@FAANews) September 17, 2015
Lines had already started to form at Chicago O'Hare, which travelers were quick to highlight on Twitter and Instagram.
So American Airlines systems are down everywhere so no one can check in, planes aren't leaving. Never wanted to leave Chicago so bad and I can't. A photo posted by Greg Thomas (@theblackmurse) on Sep 17, 2015 at 9:46am PDT
"Technical issues" have grounded several airlines in recent months. In July, United said that a router was responsible for a disruption that delayed more than 800 flights and canceled 60.
UPDATE: 2:14 p.m. ET
The airline says the issue has been resolved.
We’ve resolved connectivity issues that caused challenges at DFW, ORD and MIA. We’re sorry and will have you on your way soon.— American Airlines (@AmericanAir) September 17, 2015
Traveling with American today? Be sure to check about any delays before heading to the airport.
This story is developing.