Event ANC13CA005

Factual narrative

During the landing approach, the pilot decided to land the tundra-tire equipped airplane on a slopped, grassy area adjacent to the taxiway due to snow on his initially intended landing area. After touchdown, the airplane began to follow the slope, and the pilot applied the uphill brake, which resulted in a ground loop. The airplane sustained substantial damage to the left wing. The pilot reported that there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation. During the approach, the pilot decided to land the tundra-tire-equipped airplane on a sloped, grassy area adjacent to the taxiway because of snow on the area where he initially intended to land. After touchdown, the airplane began to follow the slope, and the pilot applied the uphill brake. The airplane subsequently entered a ground loop. The airplane sustained substantial damage to the left wing. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

• C Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - C
• C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C
• — Environmental issues-Physical environment-Terrain-Sloped/uneven-Contributed to outcome