Twenty-five US lawmakers are calling on the Federal Aviation Administration (FAA) to suspend SMART, an AI-powered air traffic management system, while questioning whether it was adequately tested before entering service. SMART began operating on 21 September at Ronald Reagan Washington National, Washington Dulles International and Baltimore/Washington International airports.

In a letter to the transportation secretary and FAA administrator, lawmakers sought details of safety assessments conducted before deployment and asked whether controllers and other aviation personnel had received sufficient training. They also asked whether SMART had been tested against severe weather, equipment failures and other disruptions, and whether established safety review requirements were waived. The letter gives the FAA until 19 October to respond. The report says no accidents have been reported as attributed to SMART.