{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":3,"name":"Johnson Gary","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/johnson-gary"}],"relation":"is a"},{"group":"Engine","items":[{"count":449,"name":"Rotax 503 series","note":"52 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/rotax-503-series"}],"relation":"powered by"},{"group":"Place","items":[{"count":24,"name":"Humboldt, TN","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Humboldt Municipal","note":"M53","unit":"","url":"https://eflight.com/airports/M53"},{"count":6535,"name":"Tennessee","note":"","unit":"aircraft registered","url":"https://eflight.com/states/TN"}],"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/N54GJ#records-check"}],"relation":"involved in"},{"group":"Live","items":[{"count":null,"name":"Where N54GJ is now","note":"","unit":"","url":"https://eflight.com/live?q=N54GJ"}],"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":"N54GJ","maker":"Johnson Gary","model":"CHALLENGER II","name":"Johnson Gary CHALLENGER II N54GJ","state":"TN","type":"aircraft","url":"https://eflight.com/aircraft/N54GJ","year_built":1994},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}