{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":1,"name":"Holtz Rodney R","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/holtz-rodney-r"}],"relation":"is a"},{"group":"Engine","items":[{"count":561,"name":"Rotax 503 DCDI","note":"52 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/rotax-503-dcdi"}],"relation":"powered by"},{"group":"Place","items":[{"count":2,"name":"Hillsborough, NH","note":"","unit":"aircraft registered in this town","url":""},{"count":1564,"name":"New Hampshire","note":"","unit":"aircraft registered","url":"https://eflight.com/states/NH"}],"relation":"registered in"},{"group":"Record","items":[{"count":null,"name":"Accident on November 20, 2024 at Concord, NH: no injuries, substantial damage","note":"","unit":"","url":"https://eflight.com/accidents/ERA25LA063"},{"count":null,"name":"Accident on July 23, 2018 at Oshkosh, WI: no injuries, substantial damage","note":"","unit":"","url":"https://eflight.com/accidents/CEN18CA291"},{"count":null,"name":"Accident on August 12, 2004 at New Braunfels, TX: no injuries, substantial damage","note":"","unit":"","url":"https://eflight.com/accidents/FTW04LA213"}],"relation":"involved in"},{"group":"Live","items":[{"count":null,"name":"Where N1666R is now","note":"","unit":"","url":"https://eflight.com/live?q=N1666R"}],"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":"N1666R","maker":"Holtz Rodney R","model":"CHALLENGER II","name":"Holtz Rodney R CHALLENGER II N1666R","state":"NH","type":"aircraft","url":"https://eflight.com/aircraft/N1666R","year_built":2008},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}