{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":207,"name":"Hughes 269 300 series helicopters","note":"","unit":"registered","url":"https://eflight.com/models/hughes/269#airworthiness"},{"count":20,"name":"Hughes TH-55","note":"","unit":"registered","url":"https://eflight.com/models/hughes/th-55#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Rotorcraft systems","note":"","unit":"","url":"https://eflight.com/systems/rotorcraft"}],"relation":"about"},{"group":"Related orders","items":[{"count":null,"name":"Replaces 93-17-13","note":"","unit":"","url":"https://eflight.com/directives/93-17-13"}],"relation":"related to"},{"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":"2017-08-25","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/897C0F9020EADBD58625816400542BED.0001","id":"2017-14-06","kind":"AD","name":"Airworthiness directive 2017-14-06","published":"2017-07-21","subject":"Main Rotor Drive System","system":"rotorcraft","type":"directive","url":"https://eflight.com/directives/2017-14-06"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}