{"as_of":"2026-10-07","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":891,"name":"Airbus Helicopters AS350 AStar (\u00c9cureuil), now H125","note":"","unit":"registered","url":"https://eflight.com/models/airbus-helicopters/as350#airworthiness"},{"count":6,"name":"Airbus Helicopters AS355 TwinStar","note":"","unit":"registered","url":"https://eflight.com/models/airbus-helicopters/as355#airworthiness"},{"count":310,"name":"Airbus Helicopters EC 130 now H130","note":"","unit":"registered","url":"https://eflight.com/models/airbus-helicopters/ec-130#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":"Replaced by 2022-11-08","note":"","unit":"","url":"https://eflight.com/directives/2022-11-08"},{"count":null,"name":"Replaced by 2022-19-13","note":"","unit":"","url":"https://eflight.com/directives/2022-19-13"}],"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":"2017-01-31","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/48BDC4BBEB56222F86258096005F2F43.0001","id":"2016-25-20","kind":"AD","name":"Airworthiness directive 2016-25-20","published":"2016-12-27","subject":"Main Rotor Drive System","system":"rotorcraft","type":"directive","url":"https://eflight.com/directives/2016-25-20"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}