The black box of the downed Russian jet which violated Turkish airspace last month was found damaged on Friday when Russian experts opened the box in front of journalists and diplomats.
The incident which took place on November 24 dramatically increased tensions between Moscow and Ankara and resulted in a war of words between the countries' leaders and economic sanctions being imposed by Russia.
The Turkish Armed Forces (TAF) released radar images of the incident which indicated the downed warplane violated Turkish airspace over the country’s Hatay province near the border with Syria.
However, Russia denies that it violated Turkey’s airspace and says that the jet was flying in Syrian airspace about 5.5 kilometers from the border with Turkey.
Moscow has set hopes on the examination resolving the dispute over the location of the downed Russian SU-24 when it was shot down.
But, Nikolai Primak, head of the Russian investigation, said there seemed to be some flight information missing.
Deputy Commander of the Russian Air Force Lieutenant General Sergei Dronov told reporters that the device situated near the tail of the plane had been damaged in the incident.
Some memory chips inside the orange recorder box was also found to be broken.
Officials said experts will conduct a thorough investigation of the box's contents during the weekend, and the final findings will be presented early next week.