Accident Summary
On November 23, 2011, at approximately 1630 central standard time, an Aviat Aircraft Inc. "Husky" A-1B airplane, registration N252U, nosed over after landing on a sandbar near Gainesville, Texas. The aircraft was registered to and operated by C&M Kuhn, LLC under 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed, and the flight operated without a flight plan. The flight had departed KT31, McKinney, Texas, at 1430.
Pilot Report
The pilot, who was the sole occupant and a commercial rated pilot, was not injured. He reported that during landing on the sandbar, the airplane began a slow turn to the right. He stated that it appeared the right brake locked up. He attempted to correct the right turn by applying full left rudder, left aileron, and full aft elevator, but the airplane nosed over and came to rest on its back.
Damage
The airplane sustained substantial damage to the vertical stabilizer, wings, and wing strut.
Recovery and Inspection
The airplane was lifted from the sandbar by helicopter to a nearby airfield. During recovery, the airplane remained on its back while the crew disassembled it for transport. The crew noted that the main landing gear wheels were free to rotate.
Once at the salvage yard, a mechanic inspected the airplane. The airplane was equipped with oversized Alaskan Bush wheels under Supplemental Type Certificate (STC) SA01015SE. The mechanic observed a circular "witness mark" on the right tire that corresponded to the brake caliper. He stated that with low tire pressure and a side load, the tire could come in contact with the brake caliper.
No probable cause was stated in the source.