Aircraft "black boxes" are in the hands of federal investigators probing a blaze that engulfed the engine of a London-bound airliner while passengers and crew escaped down emergency slides on a Las Vegas runway.
National Transportation Safety Administration spokesman Eric Weiss says a team in Las Vegas may provide preliminary findings as early as Thursday.
Weiss says flight data and cockpit voice recorders have arrived in Washington, D.C.
Investigators in Las Vegas are expected to talk with pilots, and begin looking at everything from fuel lines to maintenance records to engine history to pinpoint what sparked the blaze.
British Airways Flight 2276 was accelerating down a runway Tuesday when one engine caught fire.
The takeoff was aborted, slides deployed, and 170 passengers and crew escaped the Boeing 777 without serious injury.
