On September 24, 1985, a Piper PA-18 (registration N7467D) was involved in an aviation accident near Deming, NM. Investigators recorded the probable cause as: The engine failure was caused by an overly rich fuel mixture combined with rapid throttle application during takeoff power addition. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aircraft experienced engine failure during a touch-and-go landing practice maneuver due to an overly rich fuel mixture and rapid throttle application, resulting in a collision with a tree stump.
What happened
The pilot was conducting practice touch-and-go landings when the engine quit shortly after adding power for takeoff. To avoid hitting farm machinery, the pilot veered the aircraft to the left but collided with a tree stump.
The investigation
A post-accident examination of the engine revealed that it most likely failed as a result of too rich of a mixture and rapid throttle application.
Probable cause
The engine failure was caused by an overly rich fuel mixture combined with rapid throttle application during takeoff power addition.
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