{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Covers","items":[{"count":84,"name":"Air Tractor Inc AT-301","note":"","unit":"registered","url":"https://eflight.com/models/air-tractor-inc/at-301"},{"count":49,"name":"Air Tractor Inc AT-400","note":"","unit":"registered","url":"https://eflight.com/models/air-tractor-inc/at-400"}],"relation":"covers"},{"group":"Held by","items":[{"count":null,"name":"Air Tractor INC.","note":"","unit":"","url":"https://eflight.com/holders/air-tractor-inc"}],"relation":"held by"},{"group":"Orders","items":[{"count":25,"name":"FAA orders on these designs","note":"","unit":"airworthiness directives","url":"https://eflight.com/certificates/A9SW"},{"count":null,"name":"2021-05-14: TE flap control system","note":"2021-04-29","unit":"","url":"https://eflight.com/directives/2021-05-14"},{"count":null,"name":"2009-11-05: Cracks in the engine mount","note":"2009-06-01","unit":"","url":"https://eflight.com/directives/2009-11-05"},{"count":null,"name":"2006-08-08 R1: Wing lower spar cap","note":"2009-05-05","unit":"","url":"https://eflight.com/directives/2006-08-08 R1"},{"count":null,"name":"2008-26-01: Overturn skid plate kit","note":"2009-01-28","unit":"","url":"https://eflight.com/directives/2008-26-01"}],"relation":"subject to"},{"group":"More","items":[{"count":null,"name":"Every type certificate","note":"","unit":"","url":"https://eflight.com/certificates"},{"count":null,"name":"Who holds what","note":"","unit":"","url":"https://eflight.com/holders"}],"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":{"faa_document":"https://drs.faa.gov/browse/excelExternalWindow/39EA565629A5CE2186256A0700625E95.0001","holder":"Air Tractor Inc.","id":"A9SW","models":["AT-301","AT-400","AT-250","AT-300","AT-302","AT-400A"],"name":"Type certificate A9SW","product_type":"Aircraft","type":"certificate","url":"https://eflight.com/certificates/A9SW"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}