{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":6,"name":"Saab Ab SAAB 340","note":"","unit":"registered","url":"https://eflight.com/models/saab-ab/saab-340#airworthiness"},{"count":8,"name":"Saab-Fairchild 340","note":"","unit":"registered","url":"https://eflight.com/models/saab-fairchild/340#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Heating, ice protection and utility systems","note":"","unit":"","url":"https://eflight.com/systems/utility"}],"relation":"about"},{"group":"Related orders","items":[{"count":null,"name":"Replaces 2016-13-06","note":"","unit":"","url":"https://eflight.com/directives/2016-13-06"}],"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":"2018-10-18","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/CFDB9F4F0D965D9C86258307004CB44C.0001","id":"2018-18-17","kind":"AD","name":"Airworthiness directive 2018-18-17","published":"2018-09-13","subject":"Ice and Rain Protection","system":"utility","type":"directive","url":"https://eflight.com/directives/2018-18-17"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}