The judge in the Concorde manslaughter trial has thrown out a request to have the case dismissed.
On the second day of proceedings, lawyers from US airline Continental claimed evidence gathered by investigators was biased in favour of Air France. That argument was rejected by the court.
The official inquiry after the disaster concluded that a 43-centimetre titanium strip fell from the Continental DC10 on to the runway at Paris’ Charles de Gaulle airport.
The metal piece is believed to have burst one of the supersonic jets tyres during take off, spraying debris into the underwing fuel tanks, sparking a fire.
Two minutes later the plane crashed into a nearby hotel, killing 113 people.
Both Continental and two of its engineers are charged with breaking safety rules over the fitting of the titanium part.
Three other engineers are also accused of knowing about existing weaknesses in Concorde’s tyre and fuel tank design but failing to do anything.
The trial, expected to run until the end of May, could have wide-ranging implications for the way the airline industry maintains its planes.