Black Box & Beyond: How the NTSB is Piecing Together The Washington DC Crash | Explained

Black Box & Beyond: How the NTSB is Piecing Together The Washington DC Crash | Explained

​Washington: A collision between an American Airlines passenger jet and an Army helicopter near Washington, D.C., that killed 67 people brought renewed focus on the federal agency charged with investigating aviation disasters.National Transportation Safety Board Chairwoman Jennife

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