Complex sentence: At 12:36 the aircraft impacted the ground about 50 yards from where the boys were playing, gouged a 20 foot long trench in the earth and flipped upside-down.
Split into simpler sentences: At 12:36 the aircraft impacted the ground about 50 yards from where the boys were playing. The machine gouged a 20 foot long trench in the earth and flipped upside-down.