{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":73,"name":"Enstrom Helicopter Corp 480","note":"","unit":"registered","url":"https://eflight.com/models/enstrom-helicopter-corp/480#airworthiness"},{"count":64,"name":"Enstrom 280 Shark","note":"","unit":"registered","url":"https://eflight.com/models/enstrom/280#airworthiness"},{"count":147,"name":"Enstrom F-28","note":"","unit":"registered","url":"https://eflight.com/models/enstrom/f-28#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Rotorcraft systems","note":"","unit":"","url":"https://eflight.com/systems/rotorcraft"}],"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":"2018-01-04","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/8A46C443189C4729862581FC0051BF94.0001","id":"2017-26-03","kind":"AD","name":"Airworthiness directive 2017-26-03","published":"2017-12-20","subject":"Main Rotor System","system":"rotorcraft","type":"directive","url":"https://eflight.com/directives/2017-26-03"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}