The Federal Aviation Administration (FFA) said on Tuesday that it lifted a groundstop of American Airlines flights after briefly suspending flights on Christmas Eve, according to an advisory.American Airlines Group Inc. earlier said that it was experiencing technical issues affecting all of its flights, disrupting operations on one of the busiest travel days of the year.For all the latest headlines, follow our Google News channel online or via the app.“Your safety is our utmost priority, once this is rectified, we’ll have you safely on your way to your destination,” the airline said in a statement on X, without providing any more details on the nature of the issue.Some online postings said that the airline was suffering a software outage preventing it from calculating weight and balance requirements for its flights. The carrier said in a separate post that it’s working on a fix and that it has no estimated time frame of a resolution.The Federal Aviation Administration said in an