On September 19, local time, the U.S. Federal Aviation Administration (FAA) issued a ground suspension of flights due to a telecommunications failure.More than 1,800 flights at the two major airports in the Dallas area were delayed and hundreds of flights were cancelled.

The U.S. Federal Aviation Administration said that this traffic control wasDue to problems with a local telephone company's equipmentThe Federal Aviation Administration said: ¡°We are working with the telephone company to identify the cause of the failure.¡±

More than 200 flights were cancelled and more than 500 flights were delayed, almost all due to Dallas telecommunications failure, accounting for a quarter of its flight plans. Southwest Airlines delayed more than 1,100 flights, accounting for 27% of its flight plans.