The NTSB reiterated that a preliminary report about the incident, per the guidelines of the International Civil Aviation Organization (ICAO) Annex 13, is expected within 30 days f

Washington, D.C. officials have now positively identified 66 of the 67 people killed in Wednesday's midair collision between an American Airlines passenger jet and a military helicopter over the Potomac River.

The news came as crews worked to recover parts of the American Airlines jet involved in last week's midair crash from the Potomac River.