{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":38,"name":"Alexander Schleicher ASK 21","note":"","unit":"registered","url":"https://eflight.com/models/alexander-schleicher/ask-21#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Flight controls","note":"","unit":"","url":"https://eflight.com/systems/flight-controls"}],"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":"1998-06-14","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/1F2332403B30071E86256A4D00600F53.0001","id":"98-09-13","kind":"AD","name":"Airworthiness directive 98-09-13","published":"1998-04-28","subject":"S-Shaped Rudder Pedal Tube Inspection","system":"flight-controls","type":"directive","url":"https://eflight.com/directives/98-09-13"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}