{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Held by","items":[{"count":null,"name":"Aviation Holding Company","note":"","unit":"","url":"https://eflight.com/holders/aviation-holding-company"}],"relation":"held by"},{"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/A48BA08884774BB48525670B005F7F8B.0001","holder":"Aviation Holding Company","id":"ATC 53","models":["Szekely SR-3-L"],"name":"Type certificate ATC 53","product_type":"Engine","type":"certificate","url":"https://eflight.com/certificates/ATC 53"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}