An NTSB-led investigation is in full swing to identify factors that led to the Jan. 29 midair collision between an American Eagle Bombardier CRJ-700 operated by PSA Airlines on approach to Ronald Reagan Washington National Airport (DCA) and a U.S. Army Sikorsky UH-60L Black Hawk helicopter.

An American Airlines flight crashed into a U.S. Army Black Hawk Helicopter over the Potomac River as it approached Ronald Reagan Washington National Airport.

The Federal Aviation Administration (FAA) is investigating a midair collision between an American Airlines aircraft (NASDAQ:AAL) and a helicopter in Washington, DC, the United States. "A PSA Airlines Bombardier CRJ700 regional jet collided in midair with Sikorsky H-60 helicopter while on approach to Runway 33 at Reagan Washington National Airport