What happened
The flight originated from a nearby airport, Aitkin, with the intention of landing at Sky Harbor. During the landing rollout, the aircraft departed the runway and entered an area of sand. The pilot reported that while exiting the runway is not uncommon, the specific patch of sand encountered was particularly soft. As the front tires sank into the soft sand, the aircraft stopped instantly, causing the plane to nose over.
At the time of the event, a weather station located approximately 10 miles from the accident site recorded winds from 90 degrees at 9 knots. The pilot noted that crosswinds are a frequent challenge at Sky Harbor.