A congressional hearing has reinforced the idea that the January collision between an American Airlines passenger jet and an Army helicopter that killed all 67 people aboard both aircraft could have been prevented.

Sen. Jerry Moran (R-Kan.) convened a hearing on the NTSB’s preliminary report on the midair collision in Washington this winter.

Lawmakers questioned why the FAA hadn't addressed close calls at Reagan Airport prior to a collision between an Army helicopter and a passenger jet.