{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":1,"name":"Brown Mark","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/brown-mark"}],"relation":"is a"},{"group":"Place","items":[{"count":13,"name":"Elkin, NC","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Elkin Municipal","note":"ZEF","unit":"","url":"https://eflight.com/airports/ZEF"},{"count":7117,"name":"North Carolina","note":"","unit":"aircraft registered","url":"https://eflight.com/states/NC"}],"relation":"registered in"},{"group":"Record","items":[{"count":null,"name":"Accident on September 9, 2015 at Cahokia, IL: no injuries, substantial damage","note":"","unit":"","url":"https://eflight.com/accidents/CEN15LA411"}],"relation":"involved in"},{"group":"Live","items":[{"count":null,"name":"Where N43904 is now","note":"","unit":"","url":"https://eflight.com/live?q=N43904"}],"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":"N43904","maker":"Brown Mark","model":"SPACE WALKER","name":"Brown Mark SPACE WALKER N43904","state":"NC","type":"aircraft","url":"https://eflight.com/aircraft/N43904","year_built":null},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}