It's being treated like a regular field accident (in which an airplane crashes).

They got almost 100 percent of what they were looking for.

We won't know that until the (investigative) teams return. They are gathering information at various sites.

We're examining the wreckage and we'll be talking with people in the control tower. We'll be looking at weather conditions, trying to find any witnesses.

Was it an impact break? Was there a crack? Was there something pre-existing?