{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":1,"name":"Robert M Opperman","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/robert-m-opperman"}],"relation":"is a"},{"group":"Engine","items":[{"count":72,"name":"Rotax 503DCSI","note":"52 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/rotax-503dcsi"}],"relation":"powered by"},{"group":"Place","items":[{"count":157,"name":"Peoria, AZ","note":"","unit":"aircraft registered in this town","url":""},{"count":8422,"name":"Arizona","note":"","unit":"aircraft registered","url":"https://eflight.com/states/AZ"}],"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/N181DL#records-check"}],"relation":"involved in"},{"group":"Live","items":[{"count":null,"name":"Where N181DL is now","note":"","unit":"","url":"https://eflight.com/live?q=N181DL"}],"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":"N181DL","maker":"Robert M Opperman","model":"CHALLENGER","name":"Robert M Opperman CHALLENGER N181DL","state":"AZ","type":"aircraft","url":"https://eflight.com/aircraft/N181DL","year_built":2013},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}