Former White House aide named as third soldier killed in Black Hawk crash over Washington DC

Rebecca Lobach, who died in the Black Hawk Helicopter - (US Army / handout)

The third soldier who died on board the Black Hawk military helicopter that crashed after colliding with a plane in Washington DC has been named as a former White House aide.

Rebecca Lobach, 28, was a co-pilot on the aircraft when it hit the American Airlines flight in the American capital above the Potomac River, with the crash killing 67 people.