{"as_of":"2026-11-04","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":20,"name":"Hughes TH-55","note":"","unit":"registered","url":"https://eflight.com/models/hughes/th-55"},{"count":386,"name":"Hughes","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/hughes"},{"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":390,"name":"Lycoming HIO-360 series","note":"205 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/lycoming-hio-360-series"},{"count":null,"name":"Type certificate 4H12","note":"held by Schweizer Rsg LLC","unit":"","url":""}],"relation":"powered by"},{"group":"Place","items":[{"count":1613,"name":"Seattle, WA","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Boeing Fld/King County International","note":"BFI","unit":"","url":"https://eflight.com/airports/BFI"},{"count":null,"name":"Seattle-Tacoma International","note":"SEA","unit":"","url":"https://eflight.com/airports/SEA"},{"count":null,"name":"Kenmore Air Seaplane Base","note":"W55","unit":"","url":"https://eflight.com/airports/W55"},{"count":null,"name":"Seattle Seaplanes","note":"0W0","unit":"","url":"https://eflight.com/airports/0W0"},{"count":10630,"name":"Washington","note":"","unit":"aircraft registered","url":"https://eflight.com/states/WA"}],"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/N3752N#records-check"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":1,"name":"FAA orders naming the Hughes TH-55","note":"","unit":"airworthiness directives","url":"https://eflight.com/models/hughes/th-55#airworthiness"},{"count":2,"name":"Failure reports filed on the Hughes TH-55","note":"","unit":"reports since 1995","url":"https://eflight.com/models/hughes/th-55#airworthiness"},{"count":20,"name":"FAA orders naming the Lycoming HIO-360 series","note":"","unit":"airworthiness directives","url":"https://eflight.com/engines/lycoming-hio-360-series#airworthiness"},{"count":26,"name":"Failure reports on the Lycoming HIO-360 series","note":"","unit":"reports since 1995","url":"https://eflight.com/engines/lycoming-hio-360-series#airworthiness"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accident history of the Hughes TH-55","note":"","unit":"","url":"https://eflight.com/models/hughes/th-55#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 N3752N is now","note":"","unit":"","url":"https://eflight.com/live?q=N3752N"}],"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":"N3752N","maker":"Hughes","model":"TH-55A","name":"Hughes TH-55A N3752N","state":"WA","type":"aircraft","url":"https://eflight.com/aircraft/N3752N","year_built":1965},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}