The Soviet delegation stated the theory that the crew had mistakenly selected the Matsapa VOR was contradicted by the known settings of the onboard navigation equipment and the timing of the turn. They said that the data recovered from the magnetic flight data recorder did not correspond to the path of an aircraft following the signal from the Matsapa VOR. The Soviet team submitted a technical report to support their belief the Matsapa VOR's signal was not strong enough at the point of the turn for the navigation equipment on board the aircraft to receive it effectively, and further that the aeroplane was below the coverage of the VOR, therefore the signal from the Matsapa VOR could not have been the cause of the deviation.