{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":1453,"name":"Bell 206 JetRanger and LongRanger","note":"","unit":"registered","url":"https://eflight.com/models/bell/206#airworthiness"},{"count":984,"name":"Bell 407","note":"","unit":"registered","url":"https://eflight.com/models/bell/407#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Rotorcraft systems","note":"","unit":"","url":"https://eflight.com/systems/rotorcraft"}],"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":"2013-12-05","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/8396CA557E86383586257C15005504A0.0001","id":"2013-22-01","kind":"AD","name":"Airworthiness directive 2013-22-01","published":"2013-10-31","subject":"Main Rotor Drive System","system":"rotorcraft","type":"directive","url":"https://eflight.com/directives/2013-22-01"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}