On March 11, 1990, a North American T-6G (registration N2879G) operated by Bruce A. Grassfield was involved in an aviation accident near Englewood, CO. Investigators recorded the probable cause as: The pilot's improper leaning of the engine, which resulted in power surges and a subsequent loss of directional control during takeoff. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A pilot lost directional control during takeoff after improperly leaning the engine, causing a power surge that led to a nose-over accident in a snow bank.
What happened
The pilot reported that improper engine leaning occurred during the takeoff ground run. This action resulted in an engine load-up and subsequent power surges. The surges caused a loss of directional control, leading the aircraft to strike a snow bank and nose over.
The investigation
Post-accident examination revealed significant structural damage. The propeller, canopy, left main landing gear, right wing, and vertical stabilizer were all bent due to the impact.
Findings
The primary factor was the improper leaning of the engine by the pilot. This error initiated power surges that directly caused the loss of control during the critical takeoff phase.
Probable cause
The pilot's improper leaning of the engine, which resulted in power surges and a subsequent loss of directional control during takeoff.
Frequently asked questions
What happened in the 11 Mar 1990 North American T-6G accident near Englewood, CO?
A pilot lost directional control during takeoff after improperly leaning the engine, causing a power surge that led to a nose-over accident in a snow bank.
What aircraft was involved and where did it happen?
The accident on 11 Mar 1990 involved a North American T-6G, registration N2879G, operated by Bruce A. Grassfield, at Englewood, CO.
What was the probable cause of the accident?
The pilot's improper leaning of the engine, which resulted in power surges and a subsequent loss of directional control during takeoff.
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