KBIA4d
Altimeter in Black Hawk helicopter may have malfunctioned before DCA mid-air collision
NTSB chairwoman Jennifer Homendy said the collision ... between the air traffic controller and the Black Hawk crew weren't fully heard by the pilots of the helicopter either. She says at least one ...
Northcountrypublicradio.org4d
Altimeter in Black Hawk helicopter may have malfunctioned before DCA mid-air collision
The National Transportation Safety Board says altimeter in the Black Hawk helicopter may have malfunctioned before the DCA mid-air collision with ... the one 17 seconds before impact when ...
WAMC4d
Altimeter in Black Hawk helicopter may have malfunctioned before DCA mid-air collision
NTSB chairwoman Jennifer Homendy said the collision between the helicopter and ... Homendy says some radio transmissions between the air traffic controller and the Black Hawk crew weren't fully ...