The wreckage was found last Sunday (February 3) following a privately-funded underwater search.
The body of Sala was recovered from the crashed plane but attempts to recover the aircraft wreckage itself were unsuccessful. The overall operation was brought to an end due to "poor weather conditions," the agency said.
Sala had agreed to join Welsh Premier League club Cardiff for a club-record fee of 15 million pounds ($19.63 million) from Nantes. He and the pilot, David Ibbotson, are believed to have died as the single-engined Piper Malibu aircraft crashed into the sea.
Players and coaching staff from both sides joined the Nantes fans in applauding and cheering in memory of Sala who died in a plane crash.