The National Transportation Safety Board says altimeter in the Black Hawk helicopter may have malfunctioned before the DCA mid-air collision with an American Airlines jet. All 67 people aboard died.

Investigators say the crew of the helicopter that collided midair with an American Airlines jet near Washington D.C.’s Ronald ...

NTSB Chairwoman Jennifer Homendy discusses incomplete radio transmissions and altimeter issues in Black Hawk helicopter crash ...

(AP) - On Jan. 29, an American Airlines passenger jet and an Army helicopter collided as the plane prepared to land at Washington D.C.’s Ronald Reagan National Airport. Both plunged into the Potomac ...

It is likely the Black Hawk pilots “stepped on” the communication for less than a second by pressing the microphone key to communicate back to the control tower, she said.