Air France believes there are "no grounds" to the judicial investigation that has been launched against the airline and Airbus relating to the loss of an Air France A330-200 over the South Atlantic almost two years ago.
The carrier was placed under investigation alongside Airbus by French magistrates late last week over the crash into the sea of flight AF447 in June 2009.
The aircraft disappeared while operating a flight between Rio de Janeiro and Paris Charles de Gaulle.
"Air France opposes this indictment. We believe it holds no grounds," says a spokesman for the carrier. "At this stage, the examination has served no default and there is no direct relationship between the facts indicated by experts and the accident."
A fourth attempt to locate the wreckage of the aircraft is due to begin today. The search is being co-funded by Air France and Airbus.
Airbus chief executive Tom Enders last week said he strongly disagreed with the judicial investigation, noting the "absence of facts supporting this step".