BURLINGTON - Investigators looking into a triple-fatality plane crash earlier this month in Burlington are waiting on additional information about the pilot before completing their report on that crash.

Steven D. Demko, senior air safety investigator for the National Transportation Safety Board, said he should have medical and flight training records for the pilot, Dr. Michael Young, within the next two or three months.

Demko is also waiting on the final autopsy report and toxicology report. Demko said his final report on what caused the crash may take up to eight months.

"We've pretty much completed our witness interviews and we did retrieve a hand-held GPS (Global Positioning System) from the wreckage and that has been forwarded to the manufacturer for retrieval of information from it, if there is any," Demko said.

"It may contain information on air speed, altitude and the direction the aircraft was traveling in at any particular time. Sometimes it may have some case history, previous takeoffs and landings, how fast the plane was traveling on its previous approach (to the airpark)."

The plane, carrying the South Point area physician, his daughter Ginny Young and a friend, Charles Lampe, of Lexington, Ky., crashed in a field two-tenths of a mile from the Lawrence County Airpark March 13. All three people were killed.

Demko said aircraft accident investigations tend to take months to complete, in part due to the thoroughness of the research and in part because each NTSB air safety investigator typically completes as many as 50 such reports each year.