Air France says it's not convinced that faulty speed sensors caused one of its planes to crash over the Atlantic.
But the airline's chief executive said it is replacing old sensors as a precaution.
An Airbus 330 crashed into the sea on 1 June, en route from Brazil to Paris, killing all 228 people on board.
The French air accident agency has said it is too early to pinpoint any possible cause for the crash.
Brazil says three more bodies have been found in the main area of ocean where search operations are being conducted, bringing the total number of bodies recovered to 44.