{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":581,"name":"Schweizer SGS 1 gliders (1-26, 1-34, 1-35, 1-36)","note":"","unit":"registered","url":"https://eflight.com/models/schweizer/sgs-1#airworthiness"},{"count":275,"name":"Schweizer SGS 2 gliders (2-33 and 2-32)","note":"","unit":"registered","url":"https://eflight.com/models/schweizer/sgs-2#airworthiness"},{"count":20,"name":"Schweizer SGU-1","note":"","unit":"registered","url":"https://eflight.com/models/schweizer/sgu-1#airworthiness"},{"count":74,"name":"Schweizer SGU 2","note":"","unit":"registered","url":"https://eflight.com/models/schweizer/sgu-2#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Other and general","note":"","unit":"","url":"https://eflight.com/systems/other"}],"relation":"about"},{"group":"More","items":[{"count":null,"name":"Every FAA order","note":"","unit":"","url":"https://eflight.com/directives"},{"count":null,"name":"Every aircraft system","note":"","unit":"","url":"https://eflight.com/systems"}],"relation":"see also"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"effective":"1988-08-19","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/6A79099D893FC00186256A4E004462FA.0001","id":"87-17-01","kind":"AD","name":"Airworthiness directive 87-17-01","published":"","subject":"Tow Release Installation","system":"other","type":"directive","url":"https://eflight.com/directives/87-17-01"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}