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WPR21LA079

2020-12-31 · Riverside, Utah, United States · None · 1 aircraft · Status: Completed

Airport PRIV

Aircraft involved

Probable cause & findings

A failure of the throttle control during a landing roll, which resulted in a loss of control and collision with a fence.

Factual narrative

The pilot reported that, following a “smooth” landing, he reduced power, but the throttle control broke and the engine advanced to full power. The pilot immediately placed the mixture control in the lean position, but the airplane overran the runway onto a road. The left wing of the airplane subsequently contacted a fence, the airplane rotated left 180° and impacted a fencepost before it came to rest. The right main landing gear collapsed, and the airplane sustained substantial damage to the wings. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • — Aircraft-Aircraft power plant-Engine controls-Power lever-Failure
  • — Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
  • — Environmental issues-Physical environment-Object/animal/substance-Fence/fence post-Contributed to outcome

Verbatim from NTSB's published report. Source file NTSB_2021_WPR21LA079.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Search this event elsewhere

External sources are reported, not agency: signal that something happened, not fact about what happened.

Related research

Matched on aircraft type or causal vocabulary (loss of control). All research papers