NTSB Factual Report

The pilot stated that during the landing roll in a tailwheel equipped airplane, it veered suddenly to the right. Despite his control inputs, the airplane continued to veer to the right, exited the runway, and impacted a hangar located adjacent to the runway. Examination of the airplane revealed that the fuselage and both wings were structurally damaged. The tailwheel spring retaining clip was found separated from the tailwheel assembly. No anomalies were noted with the flight control system.

NTSB Probable Cause

The separation of the tailwheel spring retaining clip for unknown reasons, which resulted in the loss of directional control during the landing roll.