The report said it was "more and more probable" that a strip of metal from a Continental ... had been replaced only 16 days before the Concorde crash. The report said that investigators had ...

But in a second interim report into the accident, the investigators added that this weight discrepancy had nothing to do with the subsequent crash ... Concorde running over a metallic strip ...

NASA is looking at developing a craft with a softer boom, and Boeing is also working on a prototype for supersonic commercial travel. Any new such service will likely face the same hurdles as Concorde ...