COLMAR, France, March 14 (Reuter) - A French court on Friday sentenced the pilot of an Airbus airliner which crashed at a 1988 air show, killing three people, to six months jail for manslaughter with another 12 months suspended. The verdict vindicated Airbus Industrie , the plane's makers, blaming human error and irresponsibility by operators Air France for the disaster. The Air France A320 ploughed into a forest and exploded into flames on June 26 1988 after a very low altitude pass over an airfield at Habsheim, near the eastern city of Mulhouse, killing three of the 130 passengers. At the trial, pilot Michel Asseline blamed the cockpit computer displays and said the flight recorders had been tampered with. But the prosecution said he and co-pilot Pierre Mazieres had recklessly endangered the passengers' lives. Mazieres was given a one-year suspended sentence. The prosecutor called Asseline ``a reckless daredevil who tried to prove out of pride he was as good as a test pilot''. The defence failed to show that the flight data and voice recorders had been rigged. Experts testified that the plane crashed because it was pushed beyond its mechanical limits. Three other officials, including Air France's director of flight operations at the time, the state-owned airline's then security director and the organiser of the air show, received suspended prison terms of six months or less. Asseline and Mazieres declined to comment on the judgment or say whether they planned an appeal as they left the court. Air France was declared liable for the accident and ordered to pay undisclosed damages to victims of the crash. The prosecution said Air France had regularly run low-altitude demonstration flights with passengers aboard in violation of civil aviation regulations. ``Airlines should be transporters, not circus performers,'' expert witness Michel Bourgeois told the court. Jean-Claude Boetsch, a spokesman for an association representing victims and their families, said he thought the sentences were misguided and too heavy. ``As far as the court is concerned, the verdict is clear and the case has been proven, but in our view there is no proof. The plane is still partially in question, but the stakes are so high that they preferred to make one man pay rather than the system,'' Boetsch said. The association supported the pilots' accusations of a shortcoming in the aircraft. Asseline had brought the plane down to within about 10 metres (30 ft) of the ground and flown slowly over the crowd. He was unable to pull the plane back up quickly enough to avoid trees at the end of the runway. The crash occurred at a sensitive time for the European Airbus Industrie consortium as the A320 had just begun flying in France and was awaiting commercially vital certification from the U.S. Federal Aviation Authority. French pilots' unions had objected to the cockpit design, which they said was over-reliant on computers and eliminated a third flight officer. Airbus Industrie is a consortium of France's state-owned Aerospatiale , British Aerospace Plc , Daimler-Benz Aerospace, a unit of Daimler-Benz AG and Construcciones Aeronauticas SA (CASA) of Spain.