The investigators have found the black box from the military helicopter after the major air crash in Washington DC. The box is said to show no signs of external damage.
This means that the investigators now have access to all three black boxes from the accident. The plane's two black boxes, which, among other things, record sound from the cockpit and the flight data recorder's data, have been salvaged earlier and will be analyzed.
The domestic plane took off in Kansas on Wednesday and was heading in for landing at the centrally located Ronald Reagan Airport in Washington DC when its path was crossed by the helicopter.
By Friday afternoon, 41 bodies had been recovered from the Potomac River, 28 of them had been identified.
