{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":15,"name":"Consolidated Aeronautics Inc. LAKE LA-4","note":"","unit":"registered","url":"https://eflight.com/models/consolidated-aeronautics-inc/lake-la-4#airworthiness"},{"count":140,"name":"Consolidated Aeronautics Inc. LAKE LA-4-200","note":"","unit":"registered","url":"https://eflight.com/models/consolidated-aeronautics-inc/lake-la-4-200#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":"2002-10-23","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/683648B4396C5EDE86256C5500571FB6.0001","id":"2002-21-05","kind":"AD","name":"Airworthiness directive 2002-21-05","published":"2002-10-17","subject":"Upper and lower wing spar doublers","system":"structure","type":"directive","url":"https://eflight.com/directives/2002-21-05"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}