NTSB: Helicopter likely had technical issue before deadly DC midair collision near DCA
The National Transportation Safety Board on Friday afternoon is set to release additional details on the Jan. 29 midair ...
wglt28m
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 ...