{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":168,"name":"Great Lakes 2","note":"","unit":"registered","url":"https://eflight.com/models/great-lakes/2#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Engine","note":"","unit":"","url":"https://eflight.com/systems/engine"}],"relation":"about"},{"group":"Related orders","items":[{"count":null,"name":"Replaces 79-20-08","note":"","unit":"","url":"https://eflight.com/directives/79-20-08"}],"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":"2005-01-28","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/88A1D56572C18F2386256F6C005C6309.0001","id":"2004-25-22","kind":"AD","name":"Airworthiness directive 2004-25-22","published":"2004-12-16","subject":"Engine induction system","system":"engine","type":"directive","url":"https://eflight.com/directives/2004-25-22"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}