Black Hawk helicopter’s altimeter may have been inaccurate, pilots may have missed some calls from control tower
A preliminary analysis of the flight data and voice recorder on board a Black Hawk helicopter leading up to the collision ...
11Alive4d
Helicopter crew in collision with plane may not have heard key instruction from tower, NTSB says
National Transportation Safety Board Chairwoman Jennifer Homendy said the recording from the Black Hawk helicopter cockpit suggests ... goggles and flying by instruments. Investigators believe ...