{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":57,"name":"Aviat Aircraft Inc S-2","note":"","unit":"registered","url":"https://eflight.com/models/aviat-aircraft-inc/s-2#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":"1973-08-13","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/4A4830B4BCE3B7F086256A34006B1766.0001","id":"73-16-06","kind":"AD","name":"Airworthiness directive 73-16-06","published":"","subject":"Induction Air Box Flapper Door","system":"structure","type":"directive","url":"https://eflight.com/directives/73-16-06"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}