{"as_of":"2026-10-07","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Covers","items":[{"count":2,"name":"Rolls-Royce AVON 532R","note":"","unit":"aircraft","url":"https://eflight.com/engines/rolls-royce-avon-532r"}],"relation":"covers"},{"group":"Held by","items":[{"count":null,"name":"Rolls-Royce Limited","note":"","unit":"","url":"https://eflight.com/holders/rolls-royce-limited"}],"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/9642A1ADC373A8BA862576780074A27B.0001","holder":"Rolls-Royce Limited","id":"E-307","models":["Avon 522","Avon 525B","Avon 526","Avon 524B","Avon 532R-B","Avon 533R-11A","Avon 531","Avon 533R","Avon 527"],"name":"Type certificate E-307","product_type":"Engine","type":"certificate","url":"https://eflight.com/certificates/E-307"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}