{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":429,"name":"American Champion Aircraft 7 Citabria and Champ","note":"","unit":"registered","url":"https://eflight.com/models/american-champion-aircraft/7#airworthiness"},{"count":673,"name":"American Champion Aircraft 8 Decathlon and Scout","note":"","unit":"registered","url":"https://eflight.com/models/american-champion-aircraft/8#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Engine","note":"","unit":"","url":"https://eflight.com/systems/engine"}],"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":"1979-10-29","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/98CD7C9C797C8DB586256A3400591E6E.0001","id":"79-22-01","kind":"AD","name":"Airworthiness directive 79-22-01","published":"","subject":"Exhaust System","system":"engine","type":"directive","url":"https://eflight.com/directives/79-22-01"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}