{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":30,"name":"Rolladen-Schneider LS-6","note":"","unit":"registered","url":"https://eflight.com/models/rolladen-schneider/ls-6"},{"count":117,"name":"Rolladen-Schneider","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/rolladen-schneider"},{"count":null,"name":"Built of composite","note":"as the model family is built; the register does not record it per aircraft","unit":"","url":"https://eflight.com/materials/composite"}],"relation":"is a"},{"group":"Place","items":[{"count":739,"name":"Tucson, AZ","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Ryan Field","note":"RYN","unit":"","url":"https://eflight.com/airports/RYN"},{"count":null,"name":"Tucson International","note":"TUS","unit":"","url":"https://eflight.com/airports/TUS"},{"count":8422,"name":"Arizona","note":"","unit":"aircraft registered","url":"https://eflight.com/states/AZ"}],"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/N91BT#records-check"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":2,"name":"FAA orders naming the Rolladen-Schneider LS-6","note":"","unit":"airworthiness directives","url":"https://eflight.com/models/rolladen-schneider/ls-6#airworthiness"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accident history of the Rolladen-Schneider LS-6","note":"","unit":"","url":"https://eflight.com/models/rolladen-schneider/ls-6#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 N91BT is now","note":"","unit":"","url":"https://eflight.com/live?q=N91BT"}],"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":"composite","name":"composite","note":"A glass-fibre glider."},"id":"N91BT","maker":"Rolladen-Schneider","model":"LS-6","name":"Rolladen-Schneider LS-6 N91BT","state":"AZ","type":"aircraft","url":"https://eflight.com/aircraft/N91BT","year_built":1985},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}