{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":8,"name":"Brown","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/brown"}],"relation":"is a"},{"group":"Engine","items":[{"count":89,"name":"Franklin 4AC199D&E series","note":"90 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/franklin-4ac199d-e-series"}],"relation":"powered by"},{"group":"Owner","items":[{"count":1,"name":"Seven M Enterprises","note":"","unit":"aircraft registered to this organisation","url":"https://eflight.com/search?q=Seven M Enterprises"}],"relation":"owned by"},{"group":"Place","items":[{"count":1284,"name":"Kalispell, MT","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Glacier Park International","note":"GPI","unit":"","url":"https://eflight.com/airports/GPI"},{"count":null,"name":"Kalispell City Airport","note":"S27","unit":"","url":"https://eflight.com/airports/S27"},{"count":6049,"name":"Montana","note":"","unit":"aircraft registered","url":"https://eflight.com/states/MT"}],"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/N21BJ#records-check"}],"relation":"involved in"},{"group":"Live","items":[{"count":null,"name":"Where N21BJ is now","note":"","unit":"","url":"https://eflight.com/live?q=N21BJ"}],"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":"N21BJ","maker":"Brown","model":"B.J SPORTSTER","name":"Brown B.J SPORTSTER N21BJ","state":"MT","type":"aircraft","url":"https://eflight.com/aircraft/N21BJ","year_built":null},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}
