No fatalities

MOONEY M20J accident at West Glacier, MT, 20 Jun 2021

West Glacier, MT, United States

On June 20, 2021, a MOONEY M20J operated by INTEGRATIVE AEROSPACE CORP was involved in an aviation accident near West Glacier, MT. No fatalities were reported. Investigators recorded the probable cause as: The pilot’s inadequate performance planning and decision to continue the takeoff which, resulted in a runway overrun and collision with terrain. 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 performance planning and decision to continue the takeoff which, resulted in a runway overrun and collision with terrain.

— NTSB Determination

Contributing factors

PilotEffect on operation