The Polish president's plane, which crashed while trying to land in western Russia, hit the line of trees about a kilometer away from the beginning of the runway, the Interstate Aviation Committee (IAC) said on Friday.
A Soviet-made Tu-154 aircraft crashed last Saturday when it attempted to land at Smolensk airport in thick fog, killing President Lech Kaczynski, his wife and other 95 people on board.
"We have established that the plane had a first contact with trees about 1,050 meters from the runway and about 40-45 meters to the left of the final approach line," the IAC reported the latest results of the current investigation into the crash.
"The plane hit another tree with its left wing after 200 meters and rolled sharply to the left," the report said.
"Most of the fragments of the plane are scattered around an area about 350-500 meters away and 150 meters to the left of the runway," it said.
The IAC earlier said that the plane made only one attempt to land, denying media reports that it tried to approach the runway three or four times.
Russian investigators, experts and Polish specialists are jointly investigating the causes of the deadly crash. Polish military prosecutors, however, have opened their own investigation into the accident.
According to IAC, experts will have a rough transcription of onboard voice recordings in about a week, although the work on the least audible parts of the final conversations between the crew members could take longer.
MOSCOW, April 16 (RIA Novosti)