The Black Hawk helicopter was conducting a training flight for Captain Lobach when it collided with an American Airlines passenger jet, killing 67 people.

She was being overseen by Chief Warrant Officer 2 Andrew Lloyd Eaves, who had more than 1,000 hours of flying experience and would have been expected to take over the controls in the event of an emergency.

All three soldiers on the Army aircraft were killed in the crash above Ronald Reagan National Airport, as well as the 64 passengers and crew on American Airlines flight 5342.

The crew chief of the helicopter has been identified as Ryan O’Hara, a 28-year-old father of one.

He would have sat in the back of the helicopter on its training mission through the congested airspace above Washington DC.

On Saturday, King Charles said he was “profoundly shocked and saddened” by the Washington plane crash in a tribute to victims and emergency services.

Divers continued to search the Potomac River for remains and crucial evidence that might to help answer why the helicopter collided with the jet.

Rescuers expect to recover all of the remains, though the wreckage of the plane’s main body will probably have to be pulled from the water in order for this to happen, fire chief John Donnelly Sr said.

Donald Trump, the US president, has suggested the Army helicopter was to blame for the crash because it was “flying too high”.

The crew’s actions and the role of air traffic control are being investigated by the National Transportation Safety Board.

The investigations typically take at least a year, though investigators hope to have a preliminary report within 30 days.

At the time of the collision, one controller was managing traffic for both helicopters and planes, a job normally handled by two people, according to The New York Times. Staffing levels were “not normal”, the Federal Aviation Administration said.

Other possible factors in the crash, including the helicopter’s altitude and whether the crew was using night-vision goggles, are still under investigation.