Elevator control failure leads to fatal single-engine accident

1 fatality • Cleveland-Hopkins, United States of America • Takeoff (climb)

A single-engine aircraft experienced a sudden pitch-up and subsequent stall during the initial climb, resulting in a fatal impact near the runway.

What happened

During the takeoff phase, immediately following rotation, the aircraft experienced an extreme pitch-up maneuver, with the nose rising to an angle of approximately 60 degrees. The aircraft continued its ascent to an altitude of roughly 250 feet before entering a right roll and a nose-down pitch. This sequence led to a descent that ended in a ground impact approximately 650 feet to the right of the runway, with the aircraft striking the terrain at a 45-degree nose-down angle.

There was one fatality involving the pilot, who was the only person on board at the time of the accident.

Findings

An investigation of the wreckage identified a critical mechanical failure within the elevator control system. The elevator was found to be jammed in the full up deflection position. Specifically, the upper portion of the elevator control rod had become disconnected from the elevator surface. This rod was discovered wedged between the elevator fairing and the tail cone, which physically forced the elevator into its extreme upward position.

Investigators noted that the bolt used to connect the control rod was found undamaged at the bottom of the tail cone, though the associated washer, nut, and cotter pin were missing. Records indicated that maintenance personnel had removed, serviced, and reinstalled the elevator approximately 166 flight hours before the accident occurred.

Probable cause

The elevator became jammed in the full up position because the control rod disconnected and became wedged, causing an uncontrollable pitch-up during takeoff.

Frequently asked questions

What happened in the 1992-12-15 Volpar Turboliner 18 accident near Cleveland-Hopkins, United States of America?

A single-engine aircraft experienced a sudden pitch-up and subsequent stall during the initial climb, resulting in a fatal impact near the runway.

Were there any fatalities in the 1992-12-15 Volpar Turboliner 18 accident?

The accident was fatal, resulting in 1 fatality.

What aircraft was involved and where did it happen?

The accident on 1992-12-15 involved a Volpar Turboliner 18, registration N706M, operated by Mohican Air Service, at Cleveland-Hopkins, United States of America.

What was the probable cause of the accident?

The elevator became jammed in the full up position because the control rod disconnected and became wedged, causing an uncontrollable pitch-up during takeoff.

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