{"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":"Airframe structure","note":"","unit":"","url":"https://eflight.com/systems/structure"}],"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":"2014-12-02","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/C58CA8C7D039FD2686257D7F00525804.0001","id":"2014-21-07","kind":"AD","name":"Airworthiness directive 2014-21-07","published":"2014-10-28","subject":"Doors","system":"structure","type":"directive","url":"https://eflight.com/directives/2014-21-07"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}