Officials pulled out a voice recorder – also known as Black Box – a helicopter involved in a plane crash that killed 67 people at the Ronald Reagan Washington airport on Wednesday.
Emergency respondents plan to increase surgery over the weekend to regain debris from their place.
There were 64 passengers on the American Airlines flight when he collided with a military helicopter Black Hawk, who wore three soldiers.
The Federal Air Force Directorate (FAA) has since limited the traffic of helicopters around the airport after concern for the clerk for overcrowding in the airspace.
As of Friday, 28 people from the collision were established and 41 bodies were taken out of the water.
The rest of the body will not be found until the officers can pick up the plane from the river bed, the officials said.
Investigators pulled black boxes out of the wreck of a passenger aircraft the day after the collision.
After soaking these black boxes and pulling the moisture out of them, they will be able to get the information “Very soon,” he told a member of the National Transport Safety Committee Todd Inman on Friday night.
“We just have to work through numerous steps,” Mr Inman said.
NTSB members said they still did not know the cause of the collision.
Mr Inman said that the “main lifting” of the rescue operation, which will be carried out by the US Navy, will start on Saturday.
The aircraft parts should be removed from the water before divers can get back.
Authorities plan to copy debris in Rijeka to better understand how the aircraft reacted to the collision.
Working on the removal of large segments of aircraft from the crane water starts on Sunday and will continue throughout the week, Mr. Inman said.
Over 500 people worked on a daily basis at the scene in Rijeka Potomac, said the head of the Washington Fire Department John Donnelly.
Mr. Inman asked about reports that one air traffic controller managed both helicopter control and aircraft flying in the area
He did not comment on the specifics, but said that officers plan to examine the behavior of the controller in the last few weeks, and especially 72 hours before the fall.
“Obviously we will watch not just the staff of that day …[but also] How many people, what kind of job functions did they do, combine. “
The air traffic control group is still interviewing.
Mr Inman also asked if his team was in contact with the White House.
President Donald Trump suggested without evidence that the helicopter involved in the collision “flew too high”.
The footage of air traffic controls posted on the network suggested that the controller tried to warn the helicopter on the American Airlines plane in the second before the collision.
The helicopter pilot seems to have reacted to confirm that they were aware of the plane, but a few moments later two aircraft collided.
Trump also said that he suggested that employment of diversity on the FAA may have led to security issues.
“Our job is to find facts,” Mr. Inman said. “The more important is, our job is to ensure that this tragedy is not repeated – no matter what anyone can say.”
