{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":2,"name":"Boeing Vertol","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/boeing-vertol"}],"relation":"is a"},{"group":"Owner","items":[{"count":33,"name":"Columbia Helicopters INC","note":"","unit":"aircraft in the fleet","url":"https://eflight.com/fleets/columbia-helicopters-inc"}],"relation":"owned by"},{"group":"Place","items":[{"count":270,"name":"Aurora, OR","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Aurora State Airport","note":"UAO","unit":"","url":"https://eflight.com/airports/UAO"},{"count":7012,"name":"Oregon","note":"","unit":"aircraft registered","url":"https://eflight.com/states/OR"}],"relation":"registered in"},{"group":"Record","items":[{"count":null,"name":"No NTSB accident or incident record under this tail number","note":"","unit":"","url":"https://eflight.com/aircraft/N158CH#records-check"}],"relation":"involved in"},{"group":"Live","items":[{"count":null,"name":"Where N158CH is now","note":"","unit":"","url":"https://eflight.com/live?q=N158CH"}],"relation":"seen at"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"built_of":null,"id":"N158CH","maker":"Boeing Vertol","model":"V-107-II-14","name":"Boeing Vertol V-107-II-14 N158CH","state":"OR","type":"aircraft","url":"https://eflight.com/aircraft/N158CH","year_built":null},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}