The agency says the approved helicopter route is too close to the approach to the runway where an American Eagle plane was attempting to land in January.

It has been six weeks since 67 people died in a collision between an American Airlines flight and a U.S. Army Blackhawk helicopter in Washington, D.C.

The National Transportation Safety Board on Tuesday made an urgent safety recommendation to prevent helicopters from flying near Washington Reagan National Airport when two lesser-used runways are operational,