At National Transportation Safety Board hearings, investigators aim to uncover insights into what caused the crash between the American Airlines plane from Wichita, Kan., and the Black Hawk helicopter over Ronald Reagan National Airport.

The NTSB is holding three days of hearings to uncover insights into what caused the fatal crash between the passenger jet and the army helicopter over Ronald Reagan National Airport in January.

The National Safety Board has opened public hearings on a January midair collision between an Army Black Hawk helicopter and a commercial jet. The crash resulted in the deaths of all