Investigators piece together plane wreckage

Reporter: Chuck Weber

Investigators are putting together this wreckage like a giant puzzle to answer what really happened when two planes collided over the Everglades Saturday.

Helicopters and recovery crews pulled three engines from the Everglades Tuesday.

A helicopter, hired by the recovery company, brought to shore an engine from one of the planes.

Paul Cox, National Transportation Safety Board, says, "We're just continuing to document. We are continuing to search all facets."

Cox is leading the crash investigation, and part of the job of finding out what happened includes recovering and examining the three engines from the two planes.

"We're just looking at the general condition at this point. We're not looking for any specific thing. We kind of go through a checklist."

The remains of one of the pilots, Harry Duckworth of Pennsylvania, were found Monday. On Tuesday, deputies continued their search for the body of the other victim, student pilot Cleon Alvarez of India.

The wreckage is placed carefully to help investigators figure out how the planes collided. "The purpose of our layout is exactly as you say, to try and learn more information of how the aircraft came together. And what we have learned, we think, we have some idea of that."

But the investigator says by law he can't release what he's found until his preliminary report comes out in about 10 days. His work here is essentially finished now. The wreckage is headed to recovery the company's facility in Ft. Pierce for safe keeping.

On Monday deputies found a small amount of biological material they believe could belong to the second victim. That is still being analyzed.

And we have new information on Kemper Aviation. We now know the Lantana flight school has been involved in three crashes including the one this past Saturday. Two of the crashes were deadly; no one was hurt in the third one.

The FAA also says it has cited Kemper three times for maintenance problems involving its planes since 1992.