Casualties unknown

Ground Loop During Landing on Runway 18 (N83564)

Mount Vernon, MO, US

On August 16, 1995, an Aeronca 7AC (registration N83564) was involved in an aviation accident near Mount Vernon, MO. Investigators recorded the probable cause as: loss of aircraft control for an undetermined reason. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

A student pilot and certified flight instructor experienced a ground loop while landing on runway 18 with a 10-knot headwind. Post-accident inspection revealed the tailwheel had slipped off its rim, but it was unclear if this caused or resulted from the ground loop.

Event Details

A student pilot, under the supervision of a certificated flight instructor (CFI), was conducting a landing on runway 18. The wind was reported as from 180 degrees at 10 knots. During the landing roll, while the student pilot was operating the controls, the airplane ground looped.

Post-Accident Examination

Following the accident, an examination of the airplane disclosed that the tailwheel had slipped off its rim. The flight instructor believed that this failure was the initiating event for the ground loop. However, a subsequent inspection of the airplane did not determine whether the tailwheel dislodgement occurred before or as a consequence of the ground loop.

Investigation Findings

The investigation could not conclusively establish the sequence of events. The tailwheel slipping off its rim was identified as a possible precursor, but it could equally have been a result of the dynamic forces during the ground loop. No further causal factors were identified.

Frequently asked questions

What happened in the 16 Aug 1995 Aeronca 7AC accident near Mount Vernon, MO?

A student pilot and certified flight instructor experienced a ground loop while landing on runway 18 with a 10-knot headwind. Post-accident inspection revealed the tailwheel had slipped off its rim, but it was unclear if this caused or resulted from the ground loop.

What aircraft was involved and where did it happen?

The accident on 16 Aug 1995 involved an Aeronca 7AC, registration N83564, at Mount Vernon, MO.

What was the probable cause of the accident?

loss of aircraft control for an undetermined reason.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001207X04207. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.