The first of the National Transportation Safety Board’s three days of investigative hearings is underway to help determine what caused the deadly midair collision on January 29 between an Army helicopter on a training mission and American Airlines flight 5342 landing at Ronald Reagan Washington National Airport.

The Army goggles would have made it difficult to see the plane's colored lights, which might have helped the Black Hawk determine the plane's direction. The goggles also limited the pilots' peripheral vision as they flew near Ronald Reagan Washington National Airport.

The NTSB revealed that the Black Hawk helicopter may not have known its true altitude at a hearing. Mom Worried If New Rescue Dog Had ‘Bonded’ With Baby, Then She Caught Them Forensics expert analysis of Jeffrey Epstein jail video contradicts government's claims We Asked Young Men Who Voted For Trump to Grade Him.