{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Covers","items":[{"count":1,"name":"Lycoming IGO-540-A1C","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-igo-540-a1c"},{"count":9,"name":"Lycoming IGO-540-B1A","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-igo-540-b1a"}],"relation":"covers"},{"group":"Held by","items":[{"count":null,"name":"Lycoming Engines","note":"","unit":"","url":"https://eflight.com/holders/lycoming-engines"}],"relation":"held by"},{"group":"Orders","items":[{"count":22,"name":"FAA orders on these designs","note":"","unit":"airworthiness directives","url":"https://eflight.com/certificates/1E11"},{"count":null,"name":"2022-16-03: Engine (RECIPROCATING)","note":"2022-08-15","unit":"","url":"https://eflight.com/directives/2022-16-03"},{"count":null,"name":"2015-19-07: Fuel injector fuel lines","note":"2015-11-03","unit":"","url":"https://eflight.com/directives/2015-19-07"},{"count":null,"name":"2012-03-06: Fuel servo diaphragm","note":"2012-02-24","unit":"","url":"https://eflight.com/directives/2012-03-06"},{"count":null,"name":"2011-26-04: Externally mounted fuel injector fuel lines","note":"2012-01-25","unit":"","url":"https://eflight.com/directives/2011-26-04"}],"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/B06ADDF25F2AC653862577CF0051C60E.0001","holder":"Lycoming Engines","id":"1E11","models":["IGO-540-B1B","IGO-540-B1A","IGO-540-B1C","IGO-540-A1A","IGO-540-A1C","IGO-540-A1B"],"name":"Type certificate 1E11","product_type":"Engine","type":"certificate","url":"https://eflight.com/certificates/1E11"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}