{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Applies to","items":[{"count":107,"name":"Agusta Spa A109","note":"","unit":"registered","url":"https://eflight.com/models/agusta-spa/a109#airworthiness"}],"relation":"applies to"},{"group":"System","items":[{"count":null,"name":"Electrical power","note":"","unit":"","url":"https://eflight.com/systems/electrical"}],"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":"2012-11-27","faa_document":"https://drs.faa.gov/browse/excelExternalWindow/06EF11543AA620E986257AA0004BD203.0001","id":"2012-21-07","kind":"AD","name":"Airworthiness directive 2012-21-07","published":"2012-10-23","subject":"DC Power/Distribution System","system":"electrical","type":"directive","url":"https://eflight.com/directives/2012-21-07"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}