{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":22,"name":"Avions Mudry Et Cie CAP 10","note":"","unit":"registered","url":"https://eflight.com/models/avions-mudry-et-cie/cap-10#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Instruments and avionics","note":"","unit":"","url":"https://eflight.com/systems/avionics"}],"relation":"about"},{"group":"Related orders","items":[{"count":null,"name":"Replaced by 2003-04-02","note":"","unit":"","url":"https://eflight.com/directives/2003-04-02"}],"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":"1999-12-03","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/48C3ECB2614E2C5186256A4C005D134D.0001","id":"99-21-23","kind":"AD","name":"Airworthiness directive 99-21-23","published":"1999-10-13","subject":"Flight Manual - Airspeed","system":"avionics","type":"directive","url":"https://eflight.com/directives/99-21-23"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}