NTSB Investigation Reveals Communication Breakdown in Fatal Black Hawk Collision

The collision of the military helicopter and the passenger plane was preceded by conflicting altitude readings reported by the helicopter pilots, raising concerns about the reliability of their barometric altimeters.

Air traffic control communicated with the helicopter prior to the collision, but it appears that critical warnings regarding the approaching passenger plane may not have been fully received by the helicopter crew.

The NTSB is investigating the possibility of data inconsistencies, as well as whether the helicopter crew was perceiving different altitude readings than what was recorded.