Based on the evidence we have seen thus far -- the flight data recorder, the cockpit voice recorder, radar data and the small bits of wreckage that have been recovered -- we have found, so far, no sign of a mechanical or weather-related event that could have caused this accident,
will devote all the necessary resources to determine what caused this aircraft to crash.
We will devote all the necessary resources to determine what caused this aircraft to crash, ... We are beginning what may be a long investigation, and we are prepared to do what it takes to find the answers to the questions we are seeking.