The US National Transportation Safety Board has made an urgent safety recommendation to prevent helicopters from flying near Washington Reagan National Airport when two lesser-used runways are operational, a move that followed a mid-air collision in January that killed 67 people.

Federal investigators looking for the cause of the January collision between a passenger jet and an Army helicopter near Washington that killed 67 people are recommending a ban on some helicopter flights.

Federal investigators looking into the cause of the January collision between a passenger jet and an Army helicopter near Washington, D.C., that killed 67 people recommended a ban on some helicopter flights Tuesday, saying the current setup “poses an intolerable risk.”

Federal investigators looking into the January collision between a passenger jet and an Army helicopter recommended restricting some helicopter flights.

The separation distance allowed between planes and helicopters at the airport 'poses an intolerable risk,' the NTSB says

The NTSBis calling for immediate changes at Reagan National Airport following a deadly mid-air collision involving an American Airlines flight and a U.S. Army helicopter earlier this year.

March 11 (UPI) -- Current airport flight safety practices create an "intolerable safety risk" that could be eliminated by changing allowed separation distances between helicopters and airplanes, federal officials say.

The National Transportation Safety Board is calling for a ban on some helicopter flights near Reagan Airport after an airliner and Army Black Hawk collided in January.

The transportation secretary’s decision came after the National Transportation Safety Board cited a long history of near collisions between helicopters and airplanes near the nation’s capital.

Six weeks after 67 people perished in a D.C. midair collision, the NTSB’s preliminary report exposes a history of near misses between commercial jets and helicopters at the airport.