{"as_of":"2026-10-27","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":72688,"name":"Cessna","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/cessna"},{"count":30,"name":"Cessna 320D","note":"","unit":"registered","url":"https://eflight.com/models/cessna/320?variant=320D"},{"count":27,"name":"Cessna 320E","note":"","unit":"registered","url":"https://eflight.com/models/cessna/320?variant=320E"},{"count":23,"name":"Cessna 320C","note":"","unit":"registered","url":"https://eflight.com/models/cessna/320?variant=320C"},{"count":21,"name":"Cessna 320B","note":"","unit":"registered","url":"https://eflight.com/models/cessna/320?variant=320B"},{"count":17,"name":"Cessna 320","note":"","unit":"registered","url":"https://eflight.com/models/cessna/320?variant=320"},{"count":12,"name":"Cessna 320F","note":"","unit":"registered","url":"https://eflight.com/models/cessna/320?variant=320F"},{"count":null,"name":"2 more versions","note":"","unit":"","url":"https://eflight.com/models/cessna/320#versions"},{"count":null,"name":"Built of aluminium","note":"","unit":"","url":"https://eflight.com/materials/aluminium"}],"relation":"made by"},{"group":"Engines","items":[{"count":62,"name":"Continental TSIO-470-B","note":"260 hp","unit":"of these aircraft","url":"https://eflight.com/engines/continental-tsio-470-b"},{"count":37,"name":"Continental IO-520 series","note":"285 hp","unit":"of these aircraft","url":"https://eflight.com/engines/continental-io-520-series"},{"count":14,"name":"Continental GTSIO-520-C","note":"340 hp","unit":"of these aircraft","url":"https://eflight.com/engines/continental-gtsio-520-c"},{"count":13,"name":"Continental TSIO-520 series","note":"300 hp","unit":"of these aircraft","url":"https://eflight.com/engines/continental-tsio-520-series"},{"count":3,"name":"Lycoming TIO-540 series","note":"310 hp","unit":"of these aircraft","url":"https://eflight.com/engines/lycoming-tio-540-series"}],"relation":"powered by"},{"group":"Where they are","items":[{"count":22,"name":"Texas","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TX"},{"count":15,"name":"California","note":"","unit":"of these aircraft","url":"https://eflight.com/states/CA"},{"count":8,"name":"Colorado","note":"","unit":"of these aircraft","url":"https://eflight.com/states/CO"},{"count":7,"name":"Florida","note":"","unit":"of these aircraft","url":"https://eflight.com/states/FL"},{"count":7,"name":"Arizona","note":"","unit":"of these aircraft","url":"https://eflight.com/states/AZ"}],"relation":"registered in"},{"group":"Biggest operators","items":[{"count":2,"name":"Keystone Aerial Surveys INC","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/keystone-aerial-surveys-inc"},{"count":2,"name":"Bas Part Sales LLC","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/bas-part-sales-llc"},{"count":1,"name":"Winrick LLC","note":"","unit":"of these aircraft","url":"https://eflight.com/search?q=Winrick LLC"},{"count":1,"name":"Velez Investments LLC","note":"","unit":"of these aircraft","url":"https://eflight.com/search?q=Velez Investments LLC"},{"count":1,"name":"Two Motor Odor LLC","note":"","unit":"of these aircraft","url":"https://eflight.com/search?q=Two Motor Odor LLC"}],"relation":"owned by"},{"group":"Record","items":[{"count":87,"name":"NTSB accidents and incidents involving the 320","note":"34 fatal","unit":"cases since 1982","url":"https://eflight.com/models/cessna/320#accidents"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":20,"name":"FAA orders naming the 320","note":"","unit":"airworthiness directives","url":"https://eflight.com/models/cessna/320#airworthiness"},{"count":44,"name":"Failure reports filed on the 320","note":"","unit":"reports since 1995","url":"https://eflight.com/models/cessna/320#airworthiness"},{"count":164,"name":"Approved modifications for the 320","note":"","unit":"supplemental type certificates","url":"https://eflight.com/models/cessna/320#airworthiness"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accidents by model, with rates per thousand registered","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-model"},{"count":null,"name":"The fleet by kind, state and age","note":"","unit":"","url":"https://eflight.com/analytics/fleet"},{"count":null,"name":"Biggest makers and model families","note":"","unit":"","url":"https://eflight.com/analytics/makers"}],"relation":"compared in"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"built_of":{"material":"aluminium","name":"aluminium","note":null},"id":"cessna/320","name":"Cessna 320","registered":137,"type":"model","url":"https://eflight.com/models/cessna/320","versions":8},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}