{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":23,"name":"Aerospatiale AS-355","note":"","unit":"registered","url":"https://eflight.com/models/aerospatiale/as-355#airworthiness"},{"count":6,"name":"Airbus Helicopters AS355 TwinStar","note":"","unit":"registered","url":"https://eflight.com/models/airbus-helicopters/as355#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 2008-24-04","note":"","unit":"","url":"https://eflight.com/directives/2008-24-04"}],"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":"2020-05-28","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/A2BD3F9D1D4E446686258553003FA4EE.0001","id":"2020-09-01","kind":"AD","name":"Airworthiness directive 2020-09-01","published":"2020-04-23","subject":"Main Rotor Gearbox","system":"rotorcraft","type":"directive","url":"https://eflight.com/directives/2020-09-01"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}