What happened
The pilot reported that he executed a landing with a tailwind component. The approach was conducted at an excessive altitude and airspeed. Upon touchdown, only approximately 800 feet of remaining runway was available for deceleration. The aircraft was unable to stop within the paved surface and overran the end of the runway, coming to rest in a plowed field after nosing over.
The investigation
Examination of the pilot's credentials revealed that he is blind in one eye. His pilot certificate contains a restriction limiting his privileges to student pilot purposes only.
Findings
The primary factors contributing to the accident were the high and fast approach, the downwind landing on a runway with insufficient remaining length, and the pilot's physical limitation regarding binocular vision which is restricted in his license.