English to French Tech/Engineering Aerospace / Aviation / Space Aircrafts

"The data included positions of the wreckage where it came to rest after the impact, buildings and structures in the immediate vicinity and trees and foliage in the area of the impact. Elevation data was stored in the survey data but only horizontal positioning was recorded by the police so the elevation data is not completely dependable since the reflector pole height may have been adjusted."

Thanks for the help!