Tailwheel Aircraft Ground-Loop on Private Gravel Strip

Casualties unknown • Kenai, AK, US

A tailwheel aircraft sustained significant structural damage after losing directional control and ground-looping to the left during landing on a private gravel airstrip in crosswind conditions.

What happened

The pilot was operating a tailwheel-equipped airplane when attempting to land on a private gravel airstrip oriented to the south. Conditions at the time included a direct crosswind from the east with speeds estimated between 5 and 10 knots. Shortly after the main wheels touched down, the pilot lost directional control of the aircraft. The airplane ground-looped sharply to the left.

The impact caused substantial damage to the airframe. The right main landing gear was bent, and the right wing struck the ground with sufficient force to separate the outboard four feet from the rest of the wing structure. The pilot reported that there were no mechanical issues with the airplane prior to the accident sequence.

The investigation

Examination of the wreckage revealed significant structural deformation consistent with a ground-loop event. The primary damage was concentrated on the right side of the airframe, specifically affecting the landing gear and wing assembly. No pre-accident mechanical failures were identified by the pilot or investigators as contributing factors to the loss of control.

Findings

The sequence of events indicates that directional control was lost during the landing roll on a loose surface. The combination of a tailwheel configuration, which is inherently less stable on the ground than tricycle gear, and the presence of a crosswind likely contributed to the ground-loop. The pilot's inability to maintain straight-line tracking resulted in the leftward yaw that led to the structural failure.

Safety message

Landing tailwheel aircraft on gravel surfaces requires careful attention to wind conditions. Pilots must be prepared for reduced directional stability and ensure they have sufficient runway length and crosswind capability to maintain control during the critical touchdown phase.

Probable cause

The pilot's loss of directional control during landing, which resulted in a ground-loop.

Frequently asked questions

What happened in the 2003-08-24 DE Havilland DHC-2 accident near Kenai, AK?

A tailwheel aircraft sustained significant structural damage after losing directional control and ground-looping to the left during landing on a private gravel airstrip in crosswind conditions.

What aircraft was involved and where did it happen?

The accident on 2003-08-24 involved a DE Havilland DHC-2, registration N513F, at Kenai, AK.

What was the probable cause of the accident?

The pilot's loss of directional control during landing, which resulted in a ground-loop.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20030827X01413. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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