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. Last Updated: 07/27/2016

Concorde Grounded

PARIS -- Air France said Thursday that unlike British Airways, it had not modified a part of its Concorde undercarriage following a 1993 accident when debris caused by a burst tire had punctured a fuel tank.

Investigators on Thursday confirmed a report in USA Today daily that debris from the doomed supersonic airliner's water deflectors, used to reduce spray from tires on wet runways, had been found on the tarmac following the July 25 disaster. Investigators were examining whether the deflector had flown off and pierced fuel lines, sparking a massive fire.

Investigators say they now know one, possibly two, tires burst, there was an intense fire caused by a major fuel leak, the flight crew could not retract the landing gear, and there were problems with two of the four engines. However, they do not know the order of events.

The French government said Thursday that with doubts about the disaster remaining, state-controlled Air France's five Concordes must remain grounded.