Incident Details
A pilot reported that as dusk approached, reduced visibility influenced his decision to discontinue his trip. He landed at Heber Valley Airport. During the landing rollout, as the pilot applied the brakes, the airplane veered to the right. The left wing subsequently struck the runway, and the airplane ground looped.
Investigation Findings
After the incident, a trail of brake fluid was discovered on the runway. Examination revealed that the left brake line had separated from the caliper assembly. The threads on the brake line were stripped out. Additionally, there was no loop or slack present in the brake line. The airplane had undergone brake-related maintenance approximately one year prior to the incident.
The investigation did not provide a probable cause.