No fatalities

29 Oct 2022: STEPHEN J HOFFMAN MS-500 — Houston, TX

Houston, TX, United States

On 29 Oct 2022, a STEPHEN J HOFFMAN MS-500 was involved in an aviation accident near Houston, TX. No fatalities were reported. Investigators recorded the probable cause as: The pilot’s failure to secure the magneto switch before attempting to hand rotate the engine which resulted in an inadvertent engine start, a runaway airplane, and subsequent impact with parked airplanes. This summary draws on records from NTSB; 1 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

Probable cause

The pilot’s failure to secure the magneto switch before attempting to hand rotate the engine which resulted in an inadvertent engine start, a runaway airplane, and subsequent impact with parked airplanes. Contributing to the accident was the failure to properly secure the airplane with chocks.

— NTSB Determination

Contributing factors

PilotIncorrect use/operation