aviation accident: Hiller UH-12C near GRAFTON (1999-05-16)
type: Event
start date: 1999-05-16
location: GRAFTON, OH, USA
  type: Place
  geo: GeoCoordinates
    latitude: 41.280063
    longitude: -82.029197
description: Probable cause: Inadequate maintenance which resulted in the failure of the mercury clutch assembly.
citation: DigitalDocument
license: https://creativecommons.org/publicdomain/zero/1.0/
source: https://data.ntsb.gov/carol-main-public/basic-search
source organization: US National Transportation Safety Board
publisher: AI Analytics

PropertyValue
property ID: NTSB Case Number
value: NYC99LA113

AI Analytics
type: Organization