When a cause of the Flight 587 crash is determined, it may underscore an unsettling truth about aviation safety: we sometimes don't know where aircraft problems lie until they cause an accident. If that's the case this time, one thing is almost certain. This probe, like others before, will yield improved safety guidelines.
--By Rebecca Winters
AIR FRANCE CONCORDE FLIGHT 4590 JULY 25, 2000
Four on the ground and 109 on board die when the New York-bound jet crashes outside Paris minutes after takeoff. Investigators find that a piece of metal on the runway punctured a tire--sending debris flying into...