A body seen in the remains of the plane conveying Cardiff City footballer Emiliano Sala and pilot David Ibbotson has been recovered.
The aircraft wreckage 67 metres underwater 21 miles off the coast of Guernsey in the English Channel as poor weather conditions stopped efforts to recover it.
An AAIB spokesman said:”Unfortunately, attempts to recover the aircraft wreckage were unsuccessful before poor weather conditions forced us to return the ROV to the ship.
“In challenging conditions, the AAIB and its specialist contractors successfully recovered the body previously seen amidst the wreckage.”
The AAIB said previously that the work of the ROVs has been hampered by the difficult tidal conditions around the Channel Islands.
Mr Mearns – known as the “Shipwreck Hunter” – and his team located the aircraft within two hours of commencing their search.
Cardiff had signed Sala for a club record £15 million and he was due to start training last month.
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