NTSB Factual Report

The pilot stated that the tail wheel-equipped airplane started veering to the right during the landing roll. Despite his control inputs, the airplane continued to veer to the right, exited the runway, and tipped onto its left wing tip damaging the left elevator, before coming to rest upright within a snow bank. According to the pilot, the left tail wheel steering link (spring retaining clip), Univair Part no. 2133, was missing from the tail wheel assembly and a search failed to locate it on the runway or near the airplane. A missing tail wheel steering link would allow the tail wheel to freely caster.

NTSB Probable Cause

The loss of directional control during the landing roll due to the separation of the tailwheel spring retaining clip for unknown reasons.