Отказ двигателя ЯК-50, потеря радиосвязи с УВД, вынужденная посадка в поле

Post major maintenance/life extension at Yak UK Ltd a YAK 50 loses oil pressure over the Lake District at 1250ft. Engine runs until dry before seizing, gearbox u/s and windmilling prop at 3100ft followed by glide, wheels up as per ops (no flaps on the 50) into a rough field with an upslope of 12-14 degrees at 500ft amsl. First impact to full stop 47 metres, first belly impact approx 35 metres. Aircraft did not go through a wall, starboard aileron did contact with a fence post. Wind reported at Car