What happened
The pilot reported that while attempting to land on Runway 25, the wind conditions were from 350 degrees at 6 knots, with gusts reaching 15 knots. As the airplane approached the runway, a rear quartering tailwind caused the aircraft to turn to the right. The pilot lost control of the airplane and it ground looped. The aircraft rotated approximately 180 degrees, resulting in the left main landing gear collapsing into the fuselage.
Findings
The investigation determined that the primary factor was the rear quartering tailwind during the landing phase. This wind condition caused the airplane to turn right, leading to the loss of control and subsequent ground loop. The collapse of the left main landing gear was a direct result of the ground loop forces.
Safety message
Pilots should be aware of the effects of rear quartering tailwinds during landing and takeoff, particularly when wind gusts are present. Proper crosswind landing techniques and timely corrective action can help prevent loss of control and ground loops.