Complex sentence: The vertical and both horizontal stabilizers fell on the runway before the threshold, and the remainder of the fuselage and wings yawed left and rotated in a 360 degree flat spin, then came to rest to the left of the runway about from the seawall.
Split into simpler sentences: The vertical and both horizontal stabilizers fell on the runway before the threshold. The remainder of the fuselage and wings yawed 360 degrees to the left and came to rest to the left of the runway about from the seawall.