Aircraft impact following takeoff with excessive nose-up trim

Casualties unknown • Terre Haute, IN, US

A crew performing a simulated short field takeoff experienced an aircraft impact after the airplane reached an excessive pitch attitude and the left wing dipped.

What happened

The crew was engaged in a simulated short field takeoff when a distraction occurred during the takeoff roll. The second pilot noticed that his seat belt was not fastened; he secured the belt and proceeded with the takeoff.

A tower controller observing the event reported that the nose of the airplane appeared to be excessively high. The aircraft reached a maximum altitude of approximately 200 feet, at which point the left wing dipped and the plane impacted the terrain. There were no fatalities or injuries reported among the crew.

The investigation

Post-accident examination of the aircraft revealed that the elevator trim jack screw was positioned in the full nose-up position. However, the investigation found no evidence of any mechanical malfunction occurring prior to the impact.

Probable cause

The elevator trim jack screw was set in the full nose-up position during takeoff.

Frequently asked questions

What happened in the 1994-06-19 Piper PA-18 accident near Terre Haute, IN?

A crew performing a simulated short field takeoff experienced an aircraft impact after the airplane reached an excessive pitch attitude and the left wing dipped.

What aircraft was involved and where did it happen?

The accident on 1994-06-19 involved a Piper PA-18, registration N81TW, operated by American Trans Air Training CO, at Terre Haute, IN.

What was the probable cause of the accident?

The elevator trim jack screw was set in the full nose-up position during takeoff.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001206X01503. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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