The pilot reported that during approach the sun was in his eyes and "unexpectedly the stall warning briefly sounded". He added that he added power and saw tree branches off the right wing. The airplane struck the trees on the north side of the runway, descended in a clockwise spin, and impacted the ground.
The fuselage and both wings sustained substantial damage.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.