Federal investigators looking for 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 to improve safety.
A military helicopter collided with the American Airlines jet as it was approaching Washington Reagan National Airport over the Potomac River on Jan. 29.
National Transportation Safety Board chairwoman Jennifer Homendy said Tuesday the NTSB determined that the existing separation distance between planes and helicopters at Reagan National Airport is "insufficient and poses an intolerable risk to aviation safety."
Under the current practice, helicopters and planes can be as close as 75 feet apart during landing, Homendy said. Investigators have identified 15,214 instances of planes getting alerts about helicopters being in close proximity between October 2021 and December 2024, she said.
Following the crash, the FAA took steps to restrict helicopter flights around Reagan National Airport to ensure that planes and helicopters are no longer sharing the same airspace. Now flights are put on hold temporarily when helicopters need to pass by the airport.
Investigators have said the helicopter may have had inaccurate altitude readings in the moments before the crash, and the crew may not have heard key instructions from air traffic controllers. The collision likely occurred at an altitude just under 300 feet, as the plane descended toward the helicopter, which was well above its 200-foot limit for that location.
The helicopter pilots may have also missed part of another communication, when the tower said the jet was turning toward a different runway, Homendy said last month.
The helicopter was on a "check" flight that night where the pilot was undergoing an annual test and a test on using night-vision goggles, Homendy said. Investigators believe the crew was wearing night-vision goggles throughout the flight.
The Army has said the Black Hawk crew was highly experienced and accustomed to the crowded skies around the nation's capital.