A body has been seen in the underwater wreckage of the plane that was carrying Cardiff Striker Emiliano Sala and pilot David Ibbotson.
A search on Sunday found the Piper Malibu plane on the seabed off Guernsey, almost two weeks after it went missing.
The Air Accident Investigation Branch confirmed the sighting on Monday, BBC reports.
Rescue teams are now developing a recovery plan for the plane, which is 67m (207ft) below water.
The man who found it said it was “imperative” it was raised from the seabed soon.
“There’s a much greater chance they (the Sala family) will get answers if (the plane is) recovered,” said shipwreck hunter David Mearns.
He added their “worst fears are confirmed”, saying: “It’s going to take a long time for them to come to terms with the loss.”