{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":1315,"name":"Piper PA-23 Apache and Aztec","note":"","unit":"registered","url":"https://eflight.com/models/piper/pa-23#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Airframe structure","note":"","unit":"","url":"https://eflight.com/systems/structure"}],"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":"1979-12-24","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/0DD2F7F173735C328625699E007694A1.0001","id":"79-26-01","kind":"AD","name":"Airworthiness directive 79-26-01","published":"1979-12-17","subject":"Stabilator Skins and Frame","system":"structure","type":"directive","url":"https://eflight.com/directives/79-26-01"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}