Drone operators from the National Transport Safety Board (NTSB) surveyed on January 30 the wreckage from the midair collision of a plane and helicopter over the Potomac River south of Washington.American Airlines Flight 5342 and a US Army Black Hawk helicopter collided over the Potomac River on January 29.The plane was carrying 64 people. Three soldiers were aboard the helicopter. No one survived.Fifty-five of the 67 victims had been identified by Sunday afternoon, the DC Fire and EMS Department announced. Credit: NTSB via Storyful