{"as_of":"2026-10-27","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":119,"name":"Learjet 31","note":"","unit":"registered","url":"https://eflight.com/models/learjet/31"},{"count":845,"name":"Learjet Inc","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/learjet-inc"},{"count":null,"name":"Built of aluminium","note":"as the model family is built; the register does not record it per aircraft","unit":"","url":"https://eflight.com/materials/aluminium"}],"relation":"is a"},{"group":"Engine","items":[{"count":69,"name":"AlliedSignal (Honeywell) TFE 731-2B","note":"3,500 lb thrust","unit":"aircraft with this engine series","url":"https://eflight.com/engines/alliedsignal-honeywell-tfe-731-2b"}],"relation":"powered by"},{"group":"Owner","items":[{"count":1,"name":"Fa31Dt LLC","note":"","unit":"aircraft registered to this organisation","url":"https://eflight.com/search?q=Fa31Dt LLC"}],"relation":"owned by"},{"group":"Place","items":[{"count":178,"name":"Owasso, OK","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Gundys Airport","note":"O38","unit":"","url":"https://eflight.com/airports/O38"},{"count":5643,"name":"Oklahoma","note":"","unit":"aircraft registered","url":"https://eflight.com/states/OK"}],"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/N31DT#records-check"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":17,"name":"FAA orders naming the Learjet 31","note":"","unit":"airworthiness directives","url":"https://eflight.com/models/learjet/31#airworthiness"},{"count":159,"name":"Failure reports filed on the Learjet 31","note":"","unit":"reports since 1995","url":"https://eflight.com/models/learjet/31#airworthiness"},{"count":107,"name":"Approved modifications for the Learjet 31","note":"","unit":"supplemental type certificates","url":"https://eflight.com/models/learjet/31#airworthiness"},{"count":30,"name":"Failure reports on the AlliedSignal (Honeywell) TFE 731-2B","note":"","unit":"reports since 1995","url":"https://eflight.com/engines/alliedsignal-honeywell-tfe-731-2b#airworthiness"},{"count":null,"name":"Report filed on this aircraft: Shaft, failed","note":"2017-07-29","unit":"","url":"https://eflight.com/systems/engine"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accident history of the Learjet 31","note":"","unit":"","url":"https://eflight.com/models/learjet/31#accidents"},{"count":null,"name":"Accidents by model, with rates per thousand registered","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-model"}],"relation":"compared in"},{"group":"Live","items":[{"count":null,"name":"Where N31DT is now","note":"","unit":"","url":"https://eflight.com/live?q=N31DT"}],"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":{"inherited_from_model":true,"material":"aluminium","name":"aluminium","note":null},"id":"N31DT","maker":"Learjet Inc","model":"31A","name":"Learjet Inc 31A N31DT","state":"OK","type":"aircraft","url":"https://eflight.com/aircraft/N31DT","year_built":1997},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}