No fatalities

AERONCA 11AC accident at Wapakoneta, OH, 5 Jul 2021

Wapakoneta, OH, United States

On July 5, 2021, an AERONCA 11AC was involved in an aviation accident near Wapakoneta, OH. No fatalities were reported. Investigators recorded the probable cause as: The pilot’s inadequate engine hand propping procedure resulting in the unoccupied airplane’s unintended movement and subsequent impact with a hangar. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

Probable cause

The pilot’s inadequate engine hand propping procedure resulting in the unoccupied airplane’s unintended movement and subsequent impact with a hangar.

— NTSB Determination

Contributing factors

Not installed/availableCapability exceededPilot