{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"System","items":[{"count":null,"name":"Landing gear","note":"","unit":"","url":"https://eflight.com/systems/landing-gear"}],"relation":"about"},{"group":"Related orders","items":[{"count":null,"name":"Replaces 2009-07-04","note":"","unit":"","url":"https://eflight.com/directives/2009-07-04"}],"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":"2010-11-18","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/562291E6AE57FCD4862577BC00578215.0001","id":"2010-21-16","kind":"AD","name":"Airworthiness directive 2010-21-16","published":"2010-10-14","subject":"Hydraulic Power","system":"landing-gear","type":"directive","url":"https://eflight.com/directives/2010-21-16"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}