KCUR 89.3 FM33m
Before collision with Wichita airplane, Black Hawk helicopter's altimeter may have malfunctioned
The National Transportation Safety Board says altimeter in the Black Hawk helicopter may have malfunctioned before the DCA ...
WWSB57m
NTSB: helicopter crew may not have heard key air traffic control transmission before DCA mid-air collision
National Transportation Safety Board officials said Friday that a key transmission from Reagan National Airport’s air traffic ...