Glitch that delayed U.S. flights on Monday morning has been fixed, FAA says

U.S. airlines were back in operation on Monday after a series of system-wide outages delayed flights and fired-up customer complaints on social media. The Federal Aviation Administration said the problem was caused by the Aerodata airplane planning weight and balance program.The agency issued a statement around 8.30 a.m. ET, saying the issue had been resolved.American Airlines, Southwest Airlines and Delta Air Lines reported system-wide outages, with United Airlines saying it was unable to create paperwork for some time.A brief third-party technology issue that prevented some Delta Connection flights from being dispatched on time this morning has been resolved," Delta said.Other airlines also reported a series of delays as a result of the problem.