NTSB Factual Report

The pilot reported that during the landing roll on a grass airstrip, he did not get the airplane stopped before running off the end of the runway. He said the airplane exited the runway at a slow speed and rolled into a ditch. The right main landing gear bent rearward structurally damaging a fuselage bulkhead. The pilot reported that there were no mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

NTSB Probable Cause

The pilot's failure to maintain control of the airplane during the landing roll, which resulted in a runway overrun.