No fatalities

HILLER UH-12A accident at Mosby, MO, 27 Aug 2023

Mosby, MO, United States

On August 27, 2023, a HILLER UH-12A operated by Pleasure was involved in an aviation accident near Mosby, MO. No fatalities were reported. Investigators recorded the probable cause as: The pilot’s failure to maintain adequate rotor rpm which resulted in a loss of control and impact with terrain. This summary draws on records from NTSB; 1 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

Probable cause

The pilot’s failure to maintain adequate rotor rpm which resulted in a loss of control and impact with terrain.

— NTSB Determination

Contributing factors

Powerplant parameters — Not attained/maintainedPilot