LONDON-British and French officials cleared the luxury Concorde for takeoff, laying out a series of safety modifications Wednesday that will enable the world’s only commercial supersonic jet to return to service a year after a deadly crash killed 113 people.

British Airways said it intended to resume London-New York supersonic service soon, but it did not set a date. It said one of its Concordes, which flies faster than any other commercial aircraft, had completed all the modifications and would be certified to fly on Wednesday, while modifications were under way on two other planes.

Investigators believe a stray strip of metal on the runway punctured one of the doomed Air France plane’s high-pressure tires, which blew a hole in a wing fuel tank and started a fire.

Key modifications to the aircraft include stronger tires, fuel tank linings made of bulletproof Kevlar, and extra protection for critical electrical and hydraulic systems on the underside of the wings.