{"as_of":"2026-10-23","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":108,"name":"Md Helicopters Inc 369","note":"","unit":"registered","url":"https://eflight.com/models/md-helicopters-inc/369"},{"count":145,"name":"Md Helicopters Inc","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/md-helicopters-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":9,"name":"Allison (Rolls-Royce) 250-C20C","note":"420 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/allison-rolls-royce-250-c20c"},{"count":null,"name":"Type certificate H3WE","note":"held by MD Helicopters INC (Mdhi)","unit":"","url":""}],"relation":"powered by"},{"group":"Record","items":[{"count":null,"name":"No NTSB accident or incident record under this tail number","note":"","unit":"","url":"https://eflight.com/aircraft/N101SY#records-check"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":84,"name":"FAA orders naming the Md Helicopters Inc 369","note":"","unit":"airworthiness directives","url":"https://eflight.com/models/md-helicopters-inc/369#airworthiness"},{"count":1,"name":"Failure reports filed on the Md Helicopters Inc 369","note":"","unit":"reports since 1995","url":"https://eflight.com/models/md-helicopters-inc/369#airworthiness"},{"count":191,"name":"Approved modifications for the Md Helicopters Inc 369","note":"","unit":"supplemental type certificates","url":"https://eflight.com/models/md-helicopters-inc/369#airworthiness"},{"count":5,"name":"Failure reports on the Allison (Rolls-Royce) 250-C20C","note":"","unit":"reports since 1995","url":"https://eflight.com/engines/allison-rolls-royce-250-c20c#airworthiness"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accident history of the Md Helicopters Inc 369","note":"","unit":"","url":"https://eflight.com/models/md-helicopters-inc/369#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 N101SY is now","note":"","unit":"","url":"https://eflight.com/live?q=N101SY"}],"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":"N101SY","maker":"Md Helicopters Inc","model":"369A","name":"Md Helicopters Inc 369A N101SY","state":"","type":"aircraft","url":"https://eflight.com/aircraft/N101SY","year_built":1970},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}