{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":15,"name":"Sikorsky S-55","note":"","unit":"registered","url":"https://eflight.com/models/sikorsky/s-55"},{"count":827,"name":"Sikorsky","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/sikorsky"},{"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":27,"name":"Wright R-1300 series","note":"700 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/wright-r-1300-series"},{"count":null,"name":"Type certificate 1H4","note":"held by California Helicopter Airways INC","unit":"","url":""}],"relation":"powered by"},{"group":"Owner","items":[{"count":20,"name":"Sierra Aeronautics LLC","note":"","unit":"aircraft in the fleet","url":"https://eflight.com/fleets/sierra-aeronautics-llc"}],"relation":"owned by"},{"group":"Place","items":[{"count":34,"name":"Franklin, KY","note":"","unit":"aircraft registered in this town","url":""},{"count":2981,"name":"Kentucky","note":"","unit":"aircraft registered","url":"https://eflight.com/states/KY"}],"relation":"registered in"},{"group":"Record","items":[{"count":null,"name":"Accident on July 25, 2011 at Chelan, WA: fatal, substantial damage (1 fatal)","note":"","unit":"","url":"https://eflight.com/accidents/WPR11FA350"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":19,"name":"FAA orders naming the Sikorsky S-55","note":"","unit":"airworthiness directives","url":"https://eflight.com/models/sikorsky/s-55#airworthiness"},{"count":3,"name":"Failure reports filed on the Sikorsky S-55","note":"","unit":"reports since 1995","url":"https://eflight.com/models/sikorsky/s-55#airworthiness"},{"count":18,"name":"Approved modifications for the Sikorsky S-55","note":"","unit":"supplemental type certificates","url":"https://eflight.com/models/sikorsky/s-55#airworthiness"},{"count":null,"name":"Report filed on this aircraft: Bottle, low pressure","note":"2025-04-22","unit":"","url":"https://eflight.com/systems/structure"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accident history of the Sikorsky S-55","note":"","unit":"","url":"https://eflight.com/models/sikorsky/s-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 N5663 is now","note":"","unit":"","url":"https://eflight.com/live?q=N5663"}],"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":"N5663","maker":"Sikorsky","model":"S-55B","name":"Sikorsky S-55B N5663","state":"KY","type":"aircraft","url":"https://eflight.com/aircraft/N5663","year_built":1959},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}
