{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":16,"name":"Aerospatiale/Aeritalia ATR 42","note":"","unit":"registered","url":"https://eflight.com/models/aerospatiale-aeritalia/atr-42#airworthiness"},{"count":6,"name":"Atr-Gie Avions De Trnsp Region ATR42","note":"","unit":"registered","url":"https://eflight.com/models/atr-gie-avions-de-trnsp-region/atr42#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Other and general","note":"","unit":"","url":"https://eflight.com/systems/other"}],"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":"1989-12-15","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/FE834C9FE8B722FC862569830045228F.0001","id":"89-24-07","kind":"AD","name":"Airworthiness directive 89-24-07","published":"","subject":"Anti-Icing Advisory System","system":"other","type":"directive","url":"https://eflight.com/directives/89-24-07"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}