Air crash investigators have made a crucial discovery just over a week after a private jet crashed in Florida, killing all onboard.

National Transportation Safety Board (NTSB) officers, who have been excavating the site since the crash, revealed on Tuesday afternoon that they had located the black box from the Learjet.

“NTSB investigators have recovered the cockpit voice recorder (CVR) of the Learjet 60 that crashed on Nov. 1 near Greenacres, Florida,” the agency shared on X.

The CVR is part of the black box, and captures conversations within the cockpit that may have not been transmitted.

The events that unfolded

On November 1, Tech entrepreneur Adam Robinson was travelling with his wife Helen and two children, friends Rachael Reed and Charmi Fehr and their nanny Anita Maria Cetina were travelling from Austin, Texas to the Bahamas on a plane piloted by Jeffrey Gregory and co-pilot Nathalia Filgueiras.

The Learjet 60 was passing heavy rain and bad weather when it nosedived into the ground near West Palm Beach and erupted into a fireball, killing all those onboard.

Harrowing audio captured the final minutes before the fatal crash, revealing chaos on board.

In the audio — released within hours of the crash — co-pilot Ms Filgueiras can be heard communicating with air traffic controllers as the plane begins to lose altitude.

“We are in an overspeed condition descending 20,000 feet per minute,” she said.

“We’re going to crash into the ground.”

Investigators found parts of the jet’s tail more than two kilometres from where it slammed into the ground and burst into flames.

NTSB member Tom Chapman said during a news conference in the days following the crash, that the discovery of tail parts confirmed the plane was breaking apart before it hit the ground.

Chapman said the pilot would not have been able to pull the Learjet out of its nose dive.

Unheard conversations the hope with this discovery

Some conversations were transmitted, and released not long after the crash.

But it is the conversations within the cockpit that may not have been transmitted that investigators hope they can retrieve from the CVR to gain a better understanding of the crash.

Palm Beach officials announced on Tuesday that people living at the caravan park near the crash site can now return home, however some residents have been provided temporary housing due to extensive damage to their homes.

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