{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":1655,"name":"Bombardier CL-600 Challenger and CRJ","note":"","unit":"registered","url":"https://eflight.com/models/bombardier/cl-600#airworthiness"}],"relation":"applies to"},{"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":"Replaced by 2012-21-14","note":"","unit":"","url":"https://eflight.com/directives/2012-21-14"}],"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":"2004-12-14","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/D67D3F2F26A6430586256F47005CE167.0001","id":"2004-22-23","kind":"AD","name":"Airworthiness directive 2004-22-23","published":"2004-11-09","subject":"Main landing gear (MLG)","system":"landing-gear","type":"directive","url":"https://eflight.com/directives/2004-22-23"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}