This is an excerpt from a report made to the Aviation Safety Reporting System. The narrative is written by the pilot, rather than FAA or NTSB officials. To maintain anonymity, many details, such as aircraft model or airport, are often scrubbed from the reports.
I was landing at ZZZ in my RV-4. This was my third landing of the morning. The first two landings were perfect and uneventful. On the third landing the approach and touchdown appeared normal then suddenly, when on the runway, the airplane veered to the right and then entered a ground loop. The runway was closed to all traffic at that time.
Upon inspection of the runway a dead Prairie Dog was found in the vicinity of where I landed. It appears as though my right main tire struck the Prairie Dog, which caused me to veer to the right. There were no injuries.
The right main landing gear collapsed and the propeller did contact the ground.
Prairie Dogs have been observed on a regular basis at this airport.
Primary Problem: Aircraft