{"as_of":"2026-10-23","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":189,"name":"Cessna 501 Citation I/SP","note":"","unit":"registered","url":"https://eflight.com/models/cessna/501"},{"count":72684,"name":"Cessna","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/cessna"},{"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":73,"name":"Pratt & Whitney Canada JT15D-1A","note":"2,200 lb thrust","unit":"aircraft with this engine series","url":"https://eflight.com/engines/pratt-whitney-canada-jt15d-1a"}],"relation":"powered by"},{"group":"Owner","items":[{"count":2,"name":"N501Sp LLC","note":"","unit":"aircraft registered to this organisation","url":"https://eflight.com/search?q=N501Sp LLC"}],"relation":"owned by"},{"group":"Place","items":[{"count":22,"name":"Mount Airy, MD","note":"","unit":"aircraft registered in this town","url":""},{"count":2344,"name":"Maryland","note":"","unit":"aircraft registered","url":"https://eflight.com/states/MD"}],"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/N171WJ#records-check"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":13,"name":"FAA orders naming the Cessna 501 Citation I/SP","note":"","unit":"airworthiness directives","url":"https://eflight.com/models/cessna/501#airworthiness"},{"count":68,"name":"Failure reports filed on the Cessna 501 Citation I/SP","note":"","unit":"reports since 1995","url":"https://eflight.com/models/cessna/501#airworthiness"},{"count":89,"name":"Approved modifications for the Cessna 501 Citation I/SP","note":"","unit":"supplemental type certificates","url":"https://eflight.com/models/cessna/501#airworthiness"},{"count":4,"name":"FAA orders naming the Pratt & Whitney Canada JT15D-1A","note":"","unit":"airworthiness directives","url":"https://eflight.com/engines/pratt-whitney-canada-jt15d-1a#airworthiness"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accident history of the Cessna 501 Citation I/SP","note":"","unit":"","url":"https://eflight.com/models/cessna/501#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 N171WJ is now","note":"","unit":"","url":"https://eflight.com/live?q=N171WJ"}],"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":"N171WJ","maker":"Cessna","model":"501","name":"Cessna 501 N171WJ","state":"MD","type":"aircraft","url":"https://eflight.com/aircraft/N171WJ","year_built":1981},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}