{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Covers","items":[{"count":119,"name":"Lycoming IO-720","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-io-720"},{"count":8,"name":"Lycoming IO-720-A1B","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-io-720-a1b"},{"count":1,"name":"Lycoming IO-720-C1B","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-io-720-c1b"},{"count":1,"name":"Lycoming IO-720-D1CD","note":"","unit":"aircraft","url":"https://eflight.com/engines/lycoming-io-720-d1cd"}],"relation":"covers"},{"group":"Held by","items":[{"count":null,"name":"Textron Lycoming Subsidiary of Textron INC.","note":"","unit":"","url":"https://eflight.com/holders/textron-lycoming-subsidiary-of-textron-inc"}],"relation":"held by"},{"group":"Orders","items":[{"count":26,"name":"FAA orders on these designs","note":"","unit":"airworthiness directives","url":"https://eflight.com/certificates/1E15"},{"count":null,"name":"2026-04-11: Engine (Reciprocating)","note":"2026-04-08","unit":"","url":"https://eflight.com/directives/2026-04-11"},{"count":null,"name":"2022-16-03: Engine (RECIPROCATING)","note":"2022-08-15","unit":"","url":"https://eflight.com/directives/2022-16-03"},{"count":null,"name":"2017-16-11: Reciprocating Engine Power Section","note":"2017-08-15","unit":"","url":"https://eflight.com/directives/2017-16-11"},{"count":null,"name":"2015-19-07: Fuel injector fuel lines","note":"2015-11-03","unit":"","url":"https://eflight.com/directives/2015-19-07"}],"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/6AAFA666C1F501378625887F00685940.0001","holder":"Textron Lycoming Subsidiary of Textron Inc.","id":"1E15","models":["IO-720-B1A","IO-720-D1CD","IO-720-A1A","IO-720-B1B","IO-720-D1BD","IO-720-C1BD","IO-720-A1BD","IO-720-A1B","IO-720-C1B","IO-720-D1C","IO-720-D1B","IO-720-B1BD"],"name":"Type certificate 1E15","product_type":"Engine","type":"certificate","url":"https://eflight.com/certificates/1E15"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}