{"as_of":"2026-10-23","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":25,"name":"Glaser-Dirks DG-400","note":"","unit":"registered","url":"https://eflight.com/models/glaser-dirks/dg-400#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Propeller","note":"","unit":"","url":"https://eflight.com/systems/propeller"}],"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":"1998-10-30","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/9AC5AE79A743513286256A4D0065AA36.0001","id":"98-19-17","kind":"AD","name":"Airworthiness directive 98-19-17","published":"1998-09-17","subject":"Powerplant Mount and Propeller Mount","system":"propeller","type":"directive","url":"https://eflight.com/directives/98-19-17"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}