{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Held by","items":[{"count":null,"name":"Jacobs Aircraft Engine CO.","note":"","unit":"","url":"https://eflight.com/holders/jacobs-aircraft-engine-co"}],"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/7E613D13C8EED1A9862572C0006DEFD9.0001","holder":"Jacobs Aircraft Engine Co.","id":"ATC 31 Jacobs","models":["LA-1"],"name":"Type certificate ATC 31 Jacobs","product_type":"Engine","type":"certificate","url":"https://eflight.com/certificates/ATC 31 Jacobs"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}