{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":1447,"name":"Pilatus PC-12","note":"","unit":"registered","url":"https://eflight.com/models/pilatus/pc-12#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 2000-21-14","note":"","unit":"","url":"https://eflight.com/directives/2000-21-14"}],"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":"2007-11-05","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/00DA1F6F5D6C17C58625737600594572.0001","id":"2007-21-11","kind":"AD","name":"Airworthiness directive 2007-21-11","published":"2007-10-16","subject":"Oil pile assemblies","system":"engine","type":"directive","url":"https://eflight.com/directives/2007-21-11"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}