{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":1,"name":"Mason-Edmund","note":"","unit":"aircraft on the register","url":""}],"relation":"is a"},{"group":"Engine","items":[{"count":46,"name":"Lycoming O-290","note":"125 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/lycoming-o-290"}],"relation":"powered by"},{"group":"Place","items":[{"count":2,"name":"Brooklyn, CT","note":"","unit":"aircraft registered in this town","url":""},{"count":1610,"name":"Connecticut","note":"","unit":"aircraft registered","url":"https://eflight.com/states/CT"}],"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/N231EM#records-check"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":7,"name":"FAA orders naming the Lycoming O-290","note":"","unit":"airworthiness directives","url":"https://eflight.com/engines/lycoming-o-290#airworthiness"},{"count":20,"name":"Failure reports on the Lycoming O-290","note":"","unit":"reports since 1995","url":"https://eflight.com/engines/lycoming-o-290#airworthiness"}],"relation":"subject to"},{"group":"Live","items":[{"count":null,"name":"Where N231EM is now","note":"","unit":"","url":"https://eflight.com/live?q=N231EM"}],"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":"N231EM","maker":"Mason-Edmund","model":"THORP T-18","name":"Mason-Edmund THORP T-18 N231EM","state":"CT","type":"aircraft","url":"https://eflight.com/aircraft/N231EM","year_built":2014},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}
