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WPR21LA255

2021-06-30 · Terreton, Idaho, United States · Serious · 1 aircraft · Status: Completed

Airport 1U2

Aircraft involved

Probable cause & findings

The pilot's exceedance of the airplane's critical angle of attack during a go-around, which resulted in an aerodynamic stall and subsequent impact with terrain.

Factual narrative

The pilot reported that, he had just landed when he thought that he saw a crop duster airplane descending for a short base for landing on the opposite runway. The pilot initiated a go around with the flaps still extended and with a high-density altitude. The airplane attained an altitude of about 50 to 100 ft above ground level when the airplane stalled, and the left wing dropped. The pilot attempted to recover but did not have enough altitude before the airplane collided with the ground. The airplane nosed over and came to rest inverted. The wings and fuselage were substantially damaged. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • — Environmental issues-Conditions/weather/phenomena-Temp/humidity/pressure-High density altitude-Effect on operation
  • — Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Not attained/maintained
  • — Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
  • — Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot

Verbatim from NTSB's published report. Source file NTSB_2021_WPR21LA255.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

Matched on aircraft type or causal vocabulary (stall, go-around). All research papers