Helicopter restrictions in place at Reagan
The Federal Aviation Administration is not giving permission for low-altitude helicopter routes around Ronald Reagan Washington National Airport, the FAA told ABC News.
Helicopters can still fly into and out of the airport, but are restricted from flying specific river routes.
Transportation Secretary Sean Duffy said the "restrictions will remain in place until the NTSB completes its preliminary investigation" of the crash, "at which point it will be reviewed based on NTSB’s report."

The restricted area includes: over the top of Reagan; Haines Point to Wilson Bridge; and Memorial Bridge to South Capitol Street Bridge, excluding the Tidal Basin.
The restriction does not include "helicopters entering this airspace for lifesaving medical support, active law enforcement, active air defense, or presidential transport helicopter missions that must operate in this restricted area," the department added.
American Airlines CEO Robert Isom thanked the Trump administration for its "quick and decisive action" to restrict helicopter activity around the airport.
"We are all hurting as we continue to grieve the loss of our passengers and team members," Isom said in a statement. "In the days ahead, we will work tirelessly with the Administration and leaders in Congress to make our aviation system even safer, including by increasing investments in infrastructure, technology and personnel."
-ABC News’ Sam Sweeney