{"as_of":"2026-11-03","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"System","items":[{"count":null,"name":"Airframe structure","note":"","unit":"","url":"https://eflight.com/systems/structure"}],"relation":"about"},{"group":"Related orders","items":[{"count":null,"name":"Replaces 98-08-01","note":"","unit":"","url":"https://eflight.com/directives/98-08-01"}],"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":"1999-06-08","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/86DB4BE266A62BCC86256A29006CE6C6.0001","id":"99-09-18","kind":"AD","name":"Airworthiness directive 99-09-18","published":"1999-05-04","subject":"Inspect Fuselage Skin Of LH, RH Stubwings","system":"structure","type":"directive","url":"https://eflight.com/directives/99-09-18"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}