Incident Overview
During a glider tow launch, the tow line released when the glider was at 40 feet above ground level (AGL). The glider pilot attempted to land on the runway but instead landed adjacent to it. The glider subsequently collided with a tree, which caused the glider to ground-loop.
Tow Hitch Condition
Examination of the tow hitch mechanism revealed that it had been broken off at the tubing cluster and was distorted. The tow hitch remained attached to the glider release cable only and was found in the closed position. Despite its distorted condition, the tow hitch was still capable of operating.
Sequence of Events
The tow line release occurred at an altitude of 40 feet AGL during the tow launch. After the release, the pilot maneuvered to land on the runway but did not reach the intended landing area. The glider landed on terrain adjacent to the runway, where it struck a tree. The collision with the tree resulted in a ground loop, causing the glider to rotate abruptly.
Post-Incident Findings
The integrity of the tow hitch assembly was compromised: the mechanism was broken off at the tubing cluster and exhibited distortion. Despite this damage, the tow hitch remained functionally capable of operation in its closed position, as it was still attached to the glider's release cable.